---
title: "Evaluating Issues in NetMRI"
canonical: "https://docs.infoblox.com/space/NETMRI741AG/23592986/Evaluating%20Issues%20in%20NetMRI"
format: markdown
---
NetMRI uses the concept of Issues to quantify and report problems and events across the network.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ The main **Network** **Analysis** –> **Issues** page provides both the Network Scorecard and the Select Device Groups list. To quickly narrow down possible sources of the largest numbers of Issues, simply click a device group in the page. The Scorecard and the Issues table refresh to show only the Issues contents for the chosen device group. As an example, one device group, such as Network Management, might have an Overall Score of 10.0, indicating no problems, while the Routing device group might have an Overall Score of 8.8, indicating a substantial number of Issues in that layer of the network.

The system classifies Issues in three severity levels, along with a fourth scripting-related classification as follows:

- **Errors: **These are important issues that may affect the smooth operation of the network. Generally, such Issues are clear signs that something is wrong.
- **Warnings:** These are intermediate level problems that should be addressed after the errors have been corrected. A warning may not be a real problem, depending on the design and operation of the network.
- **Info:** These issues are provided for information, and typically alert you to minor things that may or may not indicate a problem.
- **CCS:** These issues are directly related to the execution of a CCS script. CCS uses the Issues page for notification after a script executes. An example is **Invalid** **User** **Account**, which lists the non-Admin user accounts for a selected device or device group.

Issues are so important in NetMRI that a specific administrator user account is defined to manage them. For more information, see *<span style="color: #0000ff">[<u>Understanding</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593075/Creating+Admin+and+User+Accounts#CreatingAdminandUserAccounts-bookmark197)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593075/Creating+Admin+and+User+Accounts#CreatingAdminandUserAccounts-bookmark197)*<span style="color: #0000ff">[<u>Users</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593075/Creating+Admin+and+User+Accounts#CreatingAdminandUserAccounts-bookmark197)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593075/Creating+Admin+and+User+Accounts#CreatingAdminandUserAccounts-bookmark197)*<span style="color: #0000ff">[<u>and</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593075/Creating+Admin+and+User+Accounts#CreatingAdminandUserAccounts-bookmark197)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593075/Creating+Admin+and+User+Accounts#CreatingAdminandUserAccounts-bookmark197)*<span style="color: #0000ff">[<u>Roles</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593075/Creating+Admin+and+User+Accounts#CreatingAdminandUserAccounts-bookmark197)</span>*.

The Issues pages are probably the most frequently used of all NetMRI features, designed to quickly and conveniently monitor the overall health of the network. In the **Network** **Analysis** –> **Issues** tab, the **Network** **Scorecard** shows the results of the daily analysis process and all issues generated for the latest time period. You can also filter issues.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ NetMRI evaluates over 250 discrete Issues, plus custom Issues defined by the admin user. You can find a description of all Issues supported by NetMRI by opening the *Comprehensive* *Issue* *List* under Additional Documentation in online Help. Issues are listed alphabetically.

NetMRI performs analysis of collected data during specified periods or in real-time. For issues processed during an analysis period, the system analyzes all network data collected since the last analysis process, looking for anything that might indicate an issue. For real-time analysis, NetMRI checks for issues while it collects data from the device. If an issue is found, it is raised immediately. As a result of analysis activity, NetMRI generates a collection of issues that summarize the type of problem discovered and all the devices or interfaces associated with that issue. Issues are automatically closed every night just before the new analysis processing is performed. If the same problem persists, NetMRI generates a new issue.

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Issues and the Network Scorecard

> ⚠️ **Note**
> ⚠️ 
> ⚠️ The Network Scorecard appears in both the Dashboard and in the **Network** **Analysis** –> **Issues** page.


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The **Network** **Scorecard** (**Network** **Analysis** tab –> **Issues** tab) provides a high-level performance metric for the managed network. NetMRI measures the network's daily stability and correctness and calculates the normalized Scorecard value based on a statistical analysis of all issues discovered for that day. Counts of the three primary Issue types (**Info**, **Warning, **and **Error**) also are shown.

The Network Scorecard shows the scorecard value for the current day and a two-color graph showing the stability and correctness values over the selected time period, which by default is the last day's measurement.

Stability and correctness values are two data sets that cumulatively add up to the Overall Score in the Scorecard. Each data set has a maximum value of 5.0.

Stability issues are caused by events such as excessive spanning tree topology changes, unstable links, congestion, and excessive CPU/memory utilization. Correctness issues are derived from configuration or design errors such as duplicate VLAN ID/name pairs or inconsistent routing protocol timers. Stability and correctness are measured across a variety of functional areas of the network.

The Network Scorecard table shows correctness and stability values by component area (hover over an indicator rectangle to see the numerical values). Stability and correctness "penalties" associated with each issue depend on the type and severity of the issue. Stability and correctness penalties for all components of the network combine to create the overall Network Scorecard value, expressed as the Overall Score in the upper right corner of the Scorecard.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Select a device group in the right panel of the Issues page. The Network Scorecard adjusts to show the score and the Issues for the respective device group.

The value in the Network Scorecard indicates trends, for the entire network, for a selected device group or for one of nine distinct Issue types. To make historical comparisons, the scorecard value is plotted in the Scorecard History chart. The scorecard value varies somewhat from day to day, but the desired trend over time should be rising, not falling. After two or three weeks of operation, the variability of the scorecard value should become evident.

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Viewing the Issue List

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The **Issues** page provides several different views based on the type of data you wish to view. Click the down-arrow menu for Issues and select from **Issues** **by** **Type** **with** **Scorecard**, **Issues** **by** **Type**, **Issues** **by** **Device** **with** **Historic** **Chart**, or **Issues** **by** **Device**. The **Issues** **by** **Type** page displays the currently active Issues list in a table sorted by priority — Errors, Warnings, and then Info. **Issues** **by** **Device** is helpful when you want to isolate issues appearing on a specific device.

![image](media://60051f50-3215-412a-b435-11da1a4f8065)

The **Issues** **by** **Device** **with** **Historic** **Chart** view provides an adjustable view of Issue trends for any selected device group. The time period resides on the horizontal X-axis, and the measurement, in the number of issues, is on the vertical Y-axis. Click the **Time Selector** drop-down menu to change the X-axis time period for the Historic chart.

The Historic chart displays up to four data sets as follows:

- **Adds:** Indicates the quantity of new Issues for each time period.
- **Same:** indicates Issues the time period that remains from the preceding time period.
- **Cleared:** Indicates Issues that have been cleared from the system due to administrative remediation or other causes.
- **Suppressed:** Shows the relative quantity of Issues that have been suppressed due to admin configuration of Issues that may be deemed to produce excessive notifications in each time period. Issues count for each time an increment appear as stacked bars in the chart. Move the mouse over any colored bar section to view the count for that Issue type.

To see a longer description of any issue, hover over the hyperlink in the **Title** column. Columns that are displayed by default include the following:

|  |  |
| --- | --- |
| **Severity** | Shows the severity level of the Issue: Error, Warning, or Info. |
| **Last** **Seen** | The timestamp of the last occurrence of the Issue. |
| **Title** | A hotlink showing the title of the Issue, such as Config Difference. Hover the mouse over the Title link for an Issue to see a longer description. |
| **Status** | The current state of the Issue. In most cases, an Issue will appear as Current indicating that the Issue is currently affecting devices in the network. |
| **Component** | The category to which the Issue belongs. The Network Scorecard also provides a set of nine links (**Configuration**, **Routing**, **VLANs**, **Devices**, **Security**, **VoIP**, **Interfaces**, **Subnets, **and **Wireless**) that allow separating of the Issues list into selected categories. |
| **# Affected** | To simplify the list, issues that involve more than one device, interface or VLAN are combined into a single issue that lists all the affected network components. The number of network devices affected by a given issue is shown in the **# Affected** column. |
| **#New** | The number of new instances for the Issue in the current time period. |
| **#Cleared** | The number of instances of the Issue type that have been cleared due to remediation or other actions taken in the network. |
| **#Suppressed** | Instances of the Issue that have been suppressed due to admin configuration. Suppression is often done to prevent excessive numbers of a particular Issue from displaying. |

  
Data columns that can be chosen for the **Issues** display but that are hidden by default include the following:

|  |  |
| --- | --- |
| **No** **Change** | The number of devices reporting the Issue that did not undergo a configuration or status change. |
| **Stability** | The statistical amount by which the number of reported Stability-related Issues of the specific type affects the Overall Score. Values reflected here will be equal to or less than zero. |
| **Correctness** | The statistical amount by which the number of reported Correctness-related Issues of the specific type affects the overall score. Values reflected here will be equal to or less than zero. |
| **First** **Seen** | A timestamp showing when the Issue first appeared in the network. |

  
The data set shown in the **Issues** page can be filtered in the following ways:

- Clicking one of the Component links at the bottom of the Scorecard.> Macro (anchor)
- Clicking the **Filters** button at the top right of the Issues list, and choosing the columns and values to match against.
- Click the **Display** button and choose one of the drop-down menu options: **All**, **Current**, **New**, **Cleared,** or **Suppressed.**
- Use the **Search** box at the top left of the Issues table to search for a characteristic phrase or word that appears as part of an issue title.

Other methods for filtering and reorganizing Issues data are discussed in *<span style="color: #0000ff">[<u>Using</u>](#EvaluatingIssuesinNetMRI-bookmark293)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark293)*<span style="color: #0000ff">[<u>the</u>](#EvaluatingIssuesinNetMRI-bookmark293)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark293)*<span style="color: #0000ff">[<u>Issue</u>](#EvaluatingIssuesinNetMRI-bookmark293)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark293)*<span style="color: #0000ff">[<u>Viewer</u>](#EvaluatingIssuesinNetMRI-bookmark293)</span>*.

The Device Viewer also provides a substantial Issues page, which reports Issues specifically for a single device. See*<span style="color: #0000ff">[<u> Viewing</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)*<span style="color: #0000ff">[<u>Device</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)*<span style="color: #0000ff">[<u>Issues,</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)*<span style="color: #0000ff">[<u>Configurations</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)*<span style="color: #0000ff">[<u>and</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)*<span style="color: #0000ff">[<u>Changes</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023/Inspecting+Devices+in+the+Network#InspectingDevicesintheNetwork-bookmark430)</span>* for more information.

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Viewing Issue Summaries

> ⚠️ **Note**
> ⚠️ 
> ⚠️ In the main Issues page (**Network** **Analysis** –> **Issues**), click the Issue link in the Title column. The Issue Viewer appears in a separate browser window. Consider that the data fields displayed for the Issue Viewer will provide more detail for an individual Issue then the main page.

The **Issues** page (**Network** **Analysis** tab –> **Performance** tab –> **History** section –> **Issues**) summarizes the number and severity of issues, and shows historical trends over the last 30 days. The **Issue** **Summary** panel shows the total count of Error, Warning, and Info issues for the current day, and the change in counts from the previous day. The **Issue** **Diff** **Summary** panel breaks down issues by change type (adds, same, drops). Generally, most networks will have at least a couple of issues generated each day.

- **Issue** **Summary:** The table lists the total number of issues by severity for the reporting period, and differences from the previous reporting period.
- **Issue** **History:** The chart shows the number of issues for the 30 days before the selected date.
- **Issue** **Diff** **Summary:** The table shows the number of differences by difference type for the reporting period, and the difference from the previous reporting period.
- **Issue** **Diff** **History:** The chart shows the number of differences for the 30 days before the selected date.

Click the export CSV icon at the top left of the Issues table to open the current Issues list in a spreadsheet-formatted file.

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Viewing Details of an Issue

View an issue's details by clicking the issue title hyperlink. The Issues Viewer opens in a separate browser window, which lists the network components affected by the issue along with any relevant details. Many Issue details appear in this window that does not appear in the main Issue table or in summaries. You use the Issue Viewer toolbar to suppress or unsuppress an Issue, schedule a job to address an Issue type, send an email summary, and other operations.

Click a component's IP address hyperlink to open the corresponding Device Viewer for that network component.

The Issue Viewer provides a **History** chart for the specific issue instance, indicating the number of components affected by the issue over the past 30 days. The chart measurement timeline can be adjusted to the standard **Daily**, **Weekly**, **Monthly**, **7-Day, **and **30-Day** increments. Click the **Time Selector** drop-down menu to change the X-axis time period for the Issue Viewer. Similar Issue information is also found for individual devices, under **Device Viewer** –> **Network** **Analysis** –> **Issues**. The **History** chart is useful for determining how often this issue occurs and how much of the network is affected.

Issue details include how the issue has changed since the last run, as follows:

- **Adds:** New instances of the issue, discovered by NetMRI.
- **Same:** Instances still present since the last NetMRI polling cycle.
- **Drops:** Instances no longer present, determined as such during the last NetMRI polling cycle.
- **Suppressed:** Instances that are suppressed, presumably to prevent excessive Issue notifications from display in the user interface.

For more instructions on working in this window, see *<span style="color: #0000ff">[<u>Using</u>](#EvaluatingIssuesinNetMRI-bookmark293)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark293)*<span style="color: #0000ff">[<u>the</u>](#EvaluatingIssuesinNetMRI-bookmark293)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark293)*<span style="color: #0000ff">[<u>Issue</u>](#EvaluatingIssuesinNetMRI-bookmark293)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark293)*<span style="color: #0000ff">[<u>Viewer</u>](#EvaluatingIssuesinNetMRI-bookmark293)</span>*.

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Defining Issue Thresholds

You can control the thresholds NetMRI uses on certain device and interface related issues. Through the use of Device Groups and Interface Groups, you can modify the thresholds for any one of these issues to control when the issue is raised. This capability means th> Macro (anchor)

at the same issue can be raised for different devices, but each device can have a different threshold for the issue.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Specific Issue types can be set to fire only on specific device groups and on specific interface groups.

Set thresholds using the Criteria property available in the Settings icon –> **Issue** **Analysis** –> **Issue** **Group** **Settings –> Device** **Groups** side tab and **Interface** **Groups** side tab.  
Click the *Comprehensive* *Issue* *List* under Additional Documentation in Online Help for more detailed Issue listings to assist in decisions on which issues to isolate to specific device groups or interface groups.

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Managing Issue Notification> Macro (anchor)

s

Issues generated by NetMRI are strong indicators of potentially serious problems with the network. As such, you may want to be informed whenever certain issues are generated. The Issue Notification feature is provided for such purposes, allowing you to request one or more notifications to be sent via various protocols to various destinations. All notification messages can be fully customized and multiple delivery protocols are supported.

Issue notifications are listed and created, in the Settings icon –> **Notifications** section –> **Subscriptions** page. Notifications can be sent in one of three ways:

- **E-mail:** E-mail notifications can be sent to one or more network personnel.
- **Syslog** **message:** Syslog messages enable integration with other network management tools, and allow NetMRI issues to be logged with other network activities. A syslog notification is a single formatted text line sent to a syslog server using UDP (usually to port 514).
- **SNMP** **traps:** SNMP notifications are sent as SNMP traps, which are fixed formatted SNMP messages defined by a corresponding SNMP MIB. In this case, the MIB defines the format of the notification trap because NetMRI is generating the trap.

The Settings icon –> **Notifications** section –> **Defaults** page enables users with appropriate privileges to define the settings used for all new notifications. Generally, the formatting defaults provided by NetMRI are sufficient, but the default servers and destinations are network-specific.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ A valid SMTP Server name or IP address must be entered before anyone can create an e-mail notification.  
> ⚠️   
> ⚠️ Further, the SMTP Server must be configured to accept incoming e-mail messages from NetMRI for them to be relayed to the appropriate destinations.

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Using the Issue Viewer> Macro (anchor)



The Issue Viewer appears in a new window when you click any issue hyperlink. By default, the Issue Viewer displays all issues of the selected type in a table, that occur across all NetMRI-managed devices. You can also filter the issue instances that appear in this window. Below the table, two important tabs appear.

The **History** tab provides a chart showing recent activity for the issue. The Issue Viewer is not device-specific: it is Issue-specific, which means that all devices that exhibit the issue may be listed in the Viewer, in the **Components** **Affected** **by** **Issue** table. The instance shown to the left lists a single device, but this will not be the case for many Issue instances. Devices are listed by their IP address and device name. The Issue Viewer's **Components** **Affected** **by** **Issue** table also shows a set of data columns crafted to match data reporting for the specific Issue.

**History** displays the stacked bar chart showing the following four data sets:

- **Adds:** Shows new instances of the specific Viewer issue.
- **Same:** Reflects issue instances still present since their first appearance.
- **Drops:** Shows instances no longer present.
- **Suppressed:** Shows instances that are suppressed.

The time span for the **History** chart can be adjusted as for other chart instances.

The **Description** tab explains the issue. The Description is taken from the *Comprehensive* *Issue* *List*.

To filter issues displayed in the Issue Viewer, go to the **In** list in the page header, and select the Device Group. All instances of the specific Issue across all related devices in the Group will be listed in the Issue Viewer.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ In the following instructions, you can check multiple check boxes to simultaneously perform the action on multiple devices.

To filter the issue instances table by activity type, complete the following:

1. Open the **Display** menu (above the column headers).
2. In the drop-down menu, click the activity type you want to see in the table. Choices include:
  - **All:** Displays all instances during the selected time period. For example, if a device goes down, then comes back up, then fails again. **All** shows both Device Down instances, while **Current** only shows a single Device Down instance.
  - **Current** (default): Displays all issue instances open for today, or all issue instances open at the end of a given time period if before today.
  - **New:** Displays all new instances during the selected time period.
  - **Cleared:** Displays all instances that have cleared instances during the selected time period.
  - **Suppressed:** Displays all Issue instances that have been suppressed during the selected time period.

To suppress an issue type for a device, click the check box for that device, and then click **Suppress** **Issues** below the table.

To unsuppress an issue type for a device, uncheck the check box for that device, and then click **Unsuppress** **Issues** below the table.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Some Issues may be suppressed according to organization policy. For example, NetMRI automatically reports the **OSPF** **Authentication** **Disabled** issue when appropriate. Some organizations may choose not to run authentication on particular dynamic routing protocols such as OSPF. In such cases, issue suppression is warranted. In other cases, you may see frequent warnings for particular events that are deemed trivial, and wish to prevent most instances from appearing. For more information, see *<span style="color: #0000ff">[<u>Performing</u>](#EvaluatingIssuesinNetMRI-bookmark310)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark310)*<span style="color: #0000ff">[<u>Issue</u>](#EvaluatingIssuesinNetMRI-bookmark310)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark310)*<span style="color: #0000ff">[<u>Suppression</u>](#EvaluatingIssuesinNetMRI-bookmark310)</span>*.

To schedule a job (i.e., run a script) for a device, perform the following:

1. Click the check box for the device.
2. Click **Schedule**** Job** below the table. The **Edit ****Job** dialog appears.
3. Enter a **Job**** Name**.
4. Select a **Script**** Name**.
5. Enter a **Description **(optional).
6. Click **Edit**** Schedule...**, then specify the job schedule.
7. To run the job against other devices or device groups, click the **Edit**** Groups/Devices...** button, then select other devices and/or device groups.
8. Click **Save**. The job is listed at **Config ****Management** –> **Job**** Management **–> **Job**** History** tab.

To execute a command or commands on a device, perform the following:

1. Click the check box for the device.
2. Click **Execute**** Command** below the table.
3. In the **Run**** Configuration**** Command**** Script** dialog, enter one or more valid configuration commands.
4. Click **OK**.

To send a notification about this issue, click the **Notifications** button.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ You can automate the notification process in the Settings icon –> **Notifications** section –> **Subscriptions** page.


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Creating Custom Issues> Macro (anchor)



> ⚠️ **Note**
> ⚠️ 
> ⚠️ NetMRI automatically clears all custom Issue instances from the **Network** **Analysis** –> **Issues** page precisely 24 hours after each of the Issues appear, as the result for the executed jobs or scripts run by the administrator. Following the erasure of the Issue instance, the Issue associated with the job will appear again only when the job executes.

Create and manage custom issues from the **Config** **Management** tab –> **Job** **Management** –> **Custom** **Issues** page.

Perl and CCS Scripts can reference custom issues to bring attention to conditions discovered during script processing. Check the Comprehensive Issue List under Additional Documentation in online Help for more detailed Issue listings. It is possible that an Issue already exists for script reporting purposes.

To create a new custom issue, complete the following:

1. At the top right of the page, click **New**. The **Add** **Command** **Script** **Issue** window opens.
2. Enter a unique **Issue** **ID**. Spaces are not permitted within this field. Underline characters are permissible. This value appears in the **Issue** **ID** column of the Custom Issues table.
3. Enter a **Name** for the issue.
4. Enter a **Description** for the issue. This text will appear in a pop-up when the cursor hovers over the issue's name where it appears in a table.
5. Select a **Component** to which this issue applies.
6. Specify an optional penalty by enabling **Correctness** and/or **Stability**. If enabled, this issue is included in analysis calculations for the specified **Component**.
7. In the **Detail** **Columns** field, specify the name(s) and type(s) of columns that will appear in the details table for the issue.  
  
Enter one column name and type per line, delimited by a comma. For example, `Host,` `integer`. Do not insert any spacebar characters between the column name and type, or you will receive an *invalid* *type* message from NetMRI. Column names are referenced by the script (via the Issue-Details attribute) to specify the information to include in the details table. Valid types are string and integer.

To copy a custom issue, complete the following:

1. In the **Actions** column, click the icon and choose **Copy** from the menu.
2. In the **Copy** **Custom** **Issue** dialog, enter a unique custom ID (spaces not permitted) for the copy, then click **OK**. To edit a custom issue, go to the **Actions** column, click the icon and choose **Edit** from the menu.

To delete a custom issue, go to the **Actions** column, click the icon and choose **Delete** from the menu then confirm the deletion.

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Adding a Device Viewer Hyperlink to a Custom Issue

1. In the **Detail** **Columns** field of the **Add** **Command** **Script** **Issue** dialog (see above), enter IP Address, string.
2. In the** Issue-Details** section of the CCS script, add "IP Address" $ipaddress (including the quotation marks). The resulting CCS issue contains the IP address with a hyperlink to the Device Viewer.

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Creating Custom Issue Help files> Macro (anchor)



Custom issue help files provide NetMRI users with organization-specific information for individual issues. All issue help files associated with an issue are accessed via hyperlinks in the See Also section of the Issues Viewer. Multiple help files can be associated with an issue.

Help files can be stored in any format (for example, .*pdf*, .*doc*, .*txt*, .*jpg*, etc.) that can be rendered by the web browser. Also, help files can be written in any language supported by NetMRI, enabling the user to view them in the language defined for the console.

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Custom Issue Help File Storage

Issue help files are stored in the `Backup/IssueHelp` directory as a collection of subdirectories, with each subdirectory devoted to a single issue. This allows multiple help files to be associated with each issue, and allows help files to be written in multiple languages.

The subdirectory name associated with each issue consists of the issue title with all non-alphanumeric characters removed. For example, the help files associated with the "Cisco Running Config Not Saved" issue would be stored in the *CiscoRunningConfigNotSaved* subdirectory, while the help associated with the "Bad Telnet / SSH Password" issue would be stored in the *BadTelnetSSHPassword* subdirectory.

All the help files stored in the subdirectory associated with a given issue are displayed as hyperlinks in the list. Each hyperlink label is derived from the name of the issue help file it references, and includes any spaces and special symbols.

Issue help file names must conform to the Unix file name convention, which does not allow certain characters, notably "/".

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Help File Multi-language Support

Multiple languages are supported for Issue help files in the two following ways:

- Translation of hyperlink labels based on the current language.
- Display of help file based on the current language.

This enables help file authors to install different sets of help files for different languages when a system is deployed, while allowing users to choose their preferred language when accessing the system.

By default, the issue help file name is used as the hyperlink label displayed in the Issue Viewer. To display a different hyperlink label, one or more **link** **translation** **files** can be stored in the *IssueHelp\LINKS* directory. A link translation file maps an issue help file name to a hyperlink label.

**Example:** Suppose there are two help files associated with the "Cisco Running Config Not Saved" issue:

- 01Information.txt
- 02SavingConfig.doc

The link translation file for English, *en_US.txt*, contains these entries:

- 01Information=Additional Information About Saved Configurations
- 02SavingConfig=Procedure for Saving Cisco Configuration

The link translation file for Traditional Chinese, *zh_TW.txt*, contains these entries:

- 01Information=
- 02SavingConfig=

In these examples, the file names are pre-pended by an index number, which specifies the order in which the hyperlinks are displayed in the See Also list.

The link translation files define how the issue help file names should be displayed in the hyperlink labels based on the user's current language selection. NetMRI will automatically use the appropriate link translation file if one is defined. If NetMRI doesn't find a link translation file, the issue help file name is shown as the hyperlink label.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Even when displaying in English, you may want to define an English link translation file (*en_US.txt*) so that the hyperlink labels can be specified independently of the file names used.

Issue help files and the issue link translation files in this example are organized in the following manner: NetMRI uses the contents of the *zh_TW* directory if that is the language selected by the user. If no subdirectory exists for the current language, then the files in the *CiscoRunningConfigNotSaved* directory are used.

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Installing Custom Issue Help Files

The **InstallHelpFiles** command performs a series of checks to ensure that the issue help directory names are properly formatted, that all link translation files are properly formatted and that there is an entry for each issue help file in the corresponding link translation file.

1. Copy the issue help files into the proper directories in the NetMRI Administrative Shell account. The Administrative account can be accessed using any SSH-based client application, such as WinSSH, WinSCP, PuTTY, etc.
2. Execute the **InstallHelpFiles** command in the Administrative Shell account. This verifies the correctness of the files, installs them in the NetMRI runtime environment, and restarts the NetMRI server.

After successful installation and server restart, hyperlinks to the help files will automatically appear in all corresponding issue details displays, and the help files are displayed when a user clicks those hyperlinks.

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Issue Analysis in NetMRI

Pages in the **Issue** **Analysis** section (Settings icon –> **Issue** **Analysis**) enable you to cross-check issues for device groups and interface groups, review issue suppression status, adjust reporting threshold values, and suppress issues that NetMRI can safely ignore.

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Issue Group Settings

The **Issue** **Group** **Settings** pag> Macro (anchor)

e (Settings icon –> **Issue** **Analysis** –> **Issue** **Group** **Settings**) shows the relationships between issues, device groups, and interface groups. Group settings for Issue reporting or Issue suppression can be organized in three ways: **By** **Issue**, **By** **Device** **Groups,** and/or **By** **Interface** **Groups**. These three groups are represented in the side tabs under Settings icon –> **Issue** **Analysis** –> **Issue** **Group** **Settings**.

- **By** **Issue**: Issue reporting is organized into functional categories such as **Configuration**, **Devices**, **Routing,** and **Security**. Individual Issues can be singled out within each category in the **Group** **Settings** **for** **Issue** panel.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ You may need to maximize the Settings window to get a full view of the **Group** **Settings** **for** **Issue** panel for individual Issue settings.

- **By** **Device** **Groups**: Issue reporting is organized into the defined Device Groups in the NetMRI system. By default, all issue types are associated with all device groups. Suppression of issues within specific groups has some utility here; Many Issue types do not appear on certain device types and do not need to be suppressed.   
  
Nested device groups will inherit all of the Issue processing settings of their parent. Each nested device group can override its Issue Group settings locally. You may need to pay attention to Issue settings for device groups with a highly specific focus, such as suppressing Cisco-specific Issues that are inherited by a device group dedicated to Juniper routers.
- **By** **Interface** **Groups**: Issue reporting is organized per network interface group. As with Device Groups, Issue suppression can be a granular and time-consuming activity.

To determine groups associated with an issue, complete the following:

1. Click the **by ****Issue** side tab.
2. In the **Issues** panel, expand the tree and choose the issue of interest. Associated groups are listed in the **Group**** Settings**** for ****Issue** table.
3. To edit a group's settings for that issue: Click **Edit** for the group.

To determine the issues associated with a group, complete the following:

1. Click the **by ****Device**** Groups** or **by**** Interface**** Groups** side tab as appropriate.
2. In the left panel, click the group name. Associated issues are listed in the **Issue**** Settings ****for**** Group** table.
3. To edit an issue's settings for that group, click **Edit** for the issue.

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Performing Issue Suppression> Macro (anchor)



Issue suppression enables users with **Issues:**** Modify ****Suppression**** Parameters** privileges to indicate which issues should be ignored by NetMRI for purposes of reporting and scorecard generation. Suppressed issues are still analyzed internally (because the associated analysis may be looking for multiple issues), but they are not displayed (by default) or used to compute scorecard values.

Issue suppression status is listed at Settings icon –> **Issue**** Analysis** section –> **Suppression**. The table in this page lists all issues defined in the system, and the analysis and penalties associated with that issue. The check box at the left end of each row indicates suppression status. If checked, the issue is suppressed.

To suppress an issue, click the check box for that issue. Settings are committed automatically.

To see a full description of an issue and review suppressed instances, click the hyperlink in the **Issue ****Name** column. To view analysis task details, click the hyperlink in the **Analysis**** Task**** Name** column.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ It is possible to suppress all issues, which ensures a perfect score. Infoblox does not recommend this practice. Click the **Component** column header to sort Issue Names by their respective categories.

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Details of Issue Suppression> Macro (anchor)



> ⚠️ **Note**
> ⚠️ 
> ⚠️ Group-based Issue Suppression settings recognize Device Group priority settings. NetMRI suppresses an Issue for any device if the Issue Suppression is enabled for the highest-ranking device group to which the device belongs. For example, consider a device that belongs to two device groups, Firewalls and Routing. Under **Settings **–>** Issue**** Analysis **–>** By ****Device ****Groups**, you will see that Firewalls is the highest-ranking device group. Should a particular Issue be suppressed in that device group, all devices participating in that group will have that Issue suppressed, regardless of the suppression settings in any lower-ranked device group to which the device(s) belong.


Suppressed issues continue to be analyzed internally, because the associated analysis may be looking for multiple issues. Although, they are not automatically displayed or used to compute scorecard values.  
  
NetMRI supports two styles of issue suppression: full and partial.

- Fully suppressed issues will not appear in any issue list, nor will they be used in any network or group scorecard calculation. A specific issue can be suppressed in the Settings icon –> **Issue** **Analysis** section –> **Suppression** page.  
Doing so suppresses reporting for that issue throughout the NetMRI system.
- Partially suppressed issues are suppressed on specific devices using check boxes in the Issue Viewer. issues can be partially suppressed through Device Groups and Interface Groups at Settings icon –> **Setup** section –> **Collection** **and** **Groups** –> **Groups** tab. For groups, issue instances can be suppressed before issues are even raised for a device or interface, because group settings are dynamic and dictate which issues should be suppressed.

Partially suppressed issues appear in issue lists and are used in all Scorecard calculations containing at least one unsuppressed issue detail. If all issue details are suppressed, then the issue will not appear in issue lists and will not be included in Scorecard calculations.

Partially suppressed issues can be used to temporarily ignore known problems that won’t be fixed for some time, while still tracking the problem. The issue instances are still recorded in the database and can be seen at any time by un-suppressing that instance, at which point it will appear in all past and future issues.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Scorecard values are only computed once, so any issues that are either fully or partially suppressed “at the time the scorecard is generated” are taken into consideration. If an issue is subsequently suppressed, either fully or partially, the old scorecard values will not be retroactively updated.

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Introducing Network Explorer

The **Network Explorer** tab displays everything NetMRI learns about the network.** Network Explorer** is a good starting point for inspecting the results of a Network Discovery process, viewing the topology of the discovered network, and obtaining information about how the network is behaving in each network segment.

Tabs within **Network Explorer** offer different ways to examine network data:

- **Inventory:** This tab provides basic information about all active devices, interfaces, operating systems and models in the network, including virtual devices, which are instances of virtual routers, virtual switches, and other types that are supported by selected devices from some networked system vendors.
- **Summaries:** This tab lists routes, subnets, VLANs, HSRPs/VRRPs, route targets, network views, VRFs, and ports in the network.
- **Topology:** This tab provides an interactive viewer in which you can visually explore your network’s topology and interconnectivity.
- **Discovery:** This tab provides detailed information about NetMRI’s discovery processes, including the ability to affect Discovery settings for individual devices, perform/repeat Discovery on a single device, set licensing for a managed device and remove a device from NetMRI management. For more information on device-related Discovery functions, see <span style="color: #0000ff">[*<u>Viewing Device Discovery Status and Re-Discovering a Device</u>*](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23592988/Introduction#Introduction-bookmark142)</span>.
- **Switch Port Management:** This is a key feature set for compiling, monitoring, and controlling the devices, ports and end hosts throughout an enterprise’s switched Ethernet network. Consult the topics under <span style="color: #0000ff">[*<u>Switch Port Management</u>*](https://infoblox-docs.atlassian.net/wiki/display/NAG7/Switch+Port+Management)</span>[*<u> </u>*](https://infoblox-docs.atlassian.net/wiki/display/NAG7/Switch+Port+Management)for many more details.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ If you know exactly what you are seeking, try typing a few characters in the FindIT search box (upper right corner of the main NetMRI page).

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Viewing Network Inventory

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Network Explorer supports the use of custom data fields for adding additional data to tables of information about network inventory. See [<span style="color: #0000ff">*<u>Defining and Using Custom Fields</u>*</span>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593268/Extending+Network+Device+Data+Support#ExtendingNetworkDevice&amp;DataSupport-bookmark840) for more information.

After Discovery runs its course, the Inventory tab shows the complete list of network devices with which NetMRI successfully communicates. The network Inventory includes the following classifications:

- **Devices:** The broadest information category, includes five distinct subcategories to allow for more-specific exploration: **Infrastructure Devices**, **Device Components**,** Connected End Hosts** (client systems connected to access ports on switches, for example),** Connected IP** **Phones**, and **All Devices.** Click the** View All Virtual Devices** link to list all virtual hosts and their respective virtual device contexts in the same table.  
 All Devices tables show common elements, including the device** IP Address**, the **Network View** to which the device management IP address is associated, the **Vendor**, **Device Name,** and **Device Model.**
- **Virtual Devices:** All network infrastructure devices discovered by NetMRI that possess virtualization capabilities. Each device in this category hosts one or more virtual device contexts, which are virtual machine-based switches, firewalls, and routers housed by each virtual host. See <span style="color: #0000ff">[*<u>Understanding Virtual Device Contexts</u>*](#EvaluatingIssuesinNetMRI-bookmark320)</span> for more information.
- **Interfaces:** A listing of all network interfaces, divided into the following four functional categories: Interface Config, Unused Down Ports, Unused Up Ports, and Recently Changed Ports. See <span style="color: #0000ff">[*<u>Viewing Network Interfaces</u>*](#EvaluatingIssuesinNetMRI-bookmark324)</span> for more information.
- **OSs:** Counts of operating systems and OS versions from all devices discovered and catalogued by NetMRI. See<span style="color: #0000ff">*<u> </u>*</span><span style="color: #0000ff">[*<u>Viewing Network Operating Systems </u>*](#EvaluatingIssuesinNetMRI-bookmark325)</span>for more information.
- **Models:** Counts of all hardware models discovered and catalogued by NetMRI. See<span style="color: #0000ff">[*<u> Viewing Network Device Models</u>*](#EvaluatingIssuesinNetMRI-bookmark326)</span> for more information.

The **Inventory** tab (**Network Explorer **–>** Inventory** tab) provides basic information about the following four key categories of network elements managed by NetMRI: devices, interfaces, operating systems, and device models discovered in the network. From here, you drill down to features such as the Device Viewer to inspect details about individual devices and their current states.

- To list inventoried items, click the desired category in the left panel.
- To restrict the center panel table to a specific device group, click the group name in the **Select Device Groups** panel (on the right side of the window).

> ⚠️ **Note**
> ⚠️ 
> ⚠️ During initial discovery, device counts listed in the Select Device Groups panel may differ from the number of devices displayed in the center table. The table displays real-time data about the discovery process, but the Select Device Groups panel is only updated periodically.

The **Devices** section lists network devices, device components, connected end hosts, and connected IP phones found on the network (“connected” = connected to a device in the selected group).

- To view detailed data for a device, click the IP address hyperlink in the center panel. The Device Viewer appears, listing any current Issues associated with the selected device.

The Device Viewer is not limited to this information. Seven categories of detailed information are provided by the Device Viewer for the displayed network entity. For more information, see<span style="color: #0000ff">* *</span><span style="color: #0000ff">[<u>*Inspecting Devices in the Network*</u>](https://infoblox-docs.atlassian.net/wiki/display/NAG7/Inspecting+Devices+in+the+Network)</span><span style="color: #0000ff">*.*</span>

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Viewing Date-Based Data Sets

Some **Network Explorer **–>** Inventory** pages (**Connected End Hosts, Connected IP Phones, Interface Config**) provide **Date/Period** menus that enable flexible measurement and reporting for any device, interface, or end host. You can go backwards in time to view data sets for any device, interface, or end host phenomena.

Calendar dates shown in Green represent an immediately available data set to display in a **Network Explorer **–>** Inventory** table. The most current date in the chosen Inventory page (such as the most recent 7 days for the Daily selection) is always available by default and appears highlighted in green. Older data may require a wait for the user while NetMRI generates the requested data. After generation, the requested date appears in green, indicating the data is available.

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Understanding Virtual Device Contexts

> ⚠️ **Note**
> ⚠️ 
> ⚠️ NetMRI must have reachability to all virtual device contexts hosted by virtual hosts to discover and catalog them. During data collection for VDCs, NetMRI determines the existence of virtual hosts (the device hosting the virtual contexts–the virtual router, virtual switch or other device context types – via command-line access on Cisco devices and through SNMP on Juniper devices.

NetMRI supports discovery and management of Cisco and Juniper device types that offer virtualization. Similar to servers that run VMware to run multiple instances of operating systems and data services in the same physical host, some Cisco and Juniper device types support multiple instances within the same device, each running the complete suite of protocols, configurations, and operating system. NetMRI calls these instances virtual device contexts (VDCs). NetMRI detects devices that support virtual device contexts and provides the same management and cataloging features that apply to conventional switches, routers, and firewalls.

The **Inventory** page –> **Virtual ****Devices** menu item provides a list of all VDC-supporting devices that are discovered and cataloged by NetMRI. It displays the following values:

- **IP** **Address**: The IP for the virtual device.
- **Device** **Name**: The name detected for the virtual device.
- **Collector** (for OC systems only): The Collector appliance in the Operations Center that detected and manages the virtual device.
- **Network** **View**: The network view for which the detected virtual device is a member.

Each individual virtual device context appears in the Device Viewer, in the **Network ****Explorer **–> **Inventory** page, and in other locations of the NetMRI UI. NetMRI treats virtual device contexts identically to conventional routers, switches and firewall appliances, including the ability to send commands, schedule and execute jobs, display running configurations, view change histories and issues reported from the virtual device, apply compliance policies, run traces and SNMP walks, and many other operations.

NetMRI supports the detection and management of the following> Macro (anchor)

 virtual device context-provisioning devices:

- Cisco Nexus 7000 Series multiservice switches (NX-OS).
- Cisco Pix 525, 535 Security Appliances (Cisco 8.0 and up).
- Cisco ASA 5500 Series Security Appliances.
- Cisco ACE load balancers.
- Juniper M5/M10 Routers (JunOS 10.0 and up).

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Click the **View** **All** **Virtual** **Devices** link at the top of the Virtual Devices list to display the virtual hosts and all of their associated virtual device contexts in the Inventory.

By default, the **Virtual** **Devices** list shows the **IP** **Address** for each virtual host, their provisioned **Device** **Name,** and the **Count** of virtual device contexts for each Virtual Host managed by NetMRI. Click the IP address for any item in the Virtual devices list and the list of virtual device instances appears in the right panel.

The **Virtual** **Host** **Details** panel describes the basic information for the router, switch or firewall that is hosting the virtual device contexts, including its Network View, **MAC** **Address** ID, Model, assigned device name, OS version, the device type (Firewall, Switch, Router) and Context Name if any.

The **Virtual** **Host** **Details** panel also shows the context list, which are the actual virtual routers or other instance types that are being run by the hosting system. Each context is shown by its assigned **IP** **address**.  
  
The pane also lists its assigned **Device** **Name** for each context (separately defined from the name of the hosting device) and the associated **Context** **Name**.

Click any IP address in the table and the Device Viewer popup window appears for that virtual device context.

You can also right-click on any virtual device instance to display the shortcut menu. Open the Device Viewer for any context, open the Config Explorer, view the current running configuration for the context, open its associated Issues List, execute a command, select a Telnet or SSH command-line session, and other operations.

Check the Virtual Asset Inventory report (under **Reports** –> **Standard** **Reports**) for more information on the virtual hosts and their respective VDCs.

Virtual Hosts can act as a proxy for access. If NetMRI is unable to connect to a Virtual Device directly, or the credentials are not known, NetMRI attempts to access the Virtual Device via the Virtual Host. CLI-based operations against a Virtual Device can be successful when connectivity is blocked to the Virtual Device, but not blocked to the Virtual Host. CLI operations include Job execution, Config Collection and in-browser CLI connections.

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Topology Maps and Virtual Device Contexts

The network topologies for virtual hosts (i.e. the Cisco Nexus 7000 switch, Cisco ASA firewall, Juniper router, etc.) will often bear no connectivity relationship or topology resemblance to the network topologies for the virtual device contexts maintained by the virtual host.

Cisco's ASA firewalls use the term "Admin Context" to describe a top-level container that can run one or more virtual devices (VDCs). The ASA firewall's Admin Context is termed a virtual host in the NetMRI system, and it provides the management interfaces (SSH or Telnet) into the more-detailed virtual devices. An ASA firewall can run more than one Admin Context/Virtual Host.

The Cisco ASA uses the term "Customer Context" as a label for all virtual firewalls with their own discrete configurations and allocated interfaces. These entities are labeled as Virtual Device Contexts in the NetMRI system. These virtual "devices" support their own distinct topologies that can differ significantly from the hosting ASA firewall.

You can use the Topology Viewer (**Network** **Explorer** –> **Topology**) to look at the links between the Virtual Hosts and other devices in the network. Drilling further down, you use the Topology Viewer to examine the network linkages for the virtual device contexts themselves. Their topologies will often bear no relationship to the topologies of the virtual hosts upon which they are running. See *<span style="color: #0000ff">[<u>Using</u>](#EvaluatingIssuesinNetMRI-bookmark337)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark337)*<span style="color: #0000ff">[<u>the</u>](#EvaluatingIssuesinNetMRI-bookmark337)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark337)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark337)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark337)*<span style="color: #0000ff">[<u>Viewer</u>](#EvaluatingIssuesinNetMRI-bookmark337)</span>* for more information.

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Viewing Network Interfaces

The **Interfaces** page (**Network** **Explorer** –> **Inventory** –> **Interfaces**) lists interfaces found on the network, and provides configuration data for each. All interface tables can show associated information including IP configuration, associated device name, VRF Name (if any), VLAN and trunking status, line speed (where applicable), and a Network View column.

- **Interface** **Config**: Shows all interfaces being tracked by the appliance.
- **Unused** **Down** **Ports**: All interfaces marked administratively "down" (user configured as "off") and operationally "down" (not physically connected). This helps determine whether devices are not needed or if connections can be consolidated to eliminate unneeded hardware. For example, if there is a switch with twelve ports and two allocated, and another switch possessing eight ports with five ports fully allocated, it may be possible to move all the connections on the eight-port switch to the twelve-port switch and then eliminate the eight-port switch.
- **Unused** **Up** **Ports**: All interfaces that are administratively marked "up" and operationally "down." The list can help to quickly identify bad device configurations (unused ports should not be administratively "up"), failed, or unplugged network cables, and badly allocated devices.*
- **Recently** **Changed** **Ports**: All interfaces that had status changes within the last hour. On a stable network interface, status should not change often, so the list should small or empty. If there are known connectivity problems, this list helps isolate possible problem sources.

Clicking any link in the **Interface** column displays the Interface Viewer for the chosen device port, with features for viewing interface settings and performance metrics, and a **Settings** icon –> **Port** **Control** **Settings** feature for setting an interface to administratively Up or Down, changing a VLAN assignment, or rewriting the port description.

Clicking any link in the **Network** **View** column opens the Network Viewer window.

- To view detailed data for an interface, click the interface hyperlink in the center panel. The Interface Viewer appears.

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Viewing Network Operating Systems

The **OSs** section lists operating systems running on devices in the network, including routers, switches, load balancers, Infoblox NIOS systems, and other devices from numerous vendors discovered on the network.

- To list devices running a given operating system, click the operating system in the left panel. All discovered devices running that particular operating system appear in the right panel of the Inventory page.
- To view detailed data for a device from the OSs page, click the IP address hyperlink in the center panel. The Device Viewer appears, listing any current Issues associated with the selected device.

The Device Viewer is not limited to this information. Seven categories of detailed information are provided by the Device Viewer for the displayed network entity. For more information, see *<span style="color: #0000ff">[<u>Inspecting</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>Devices</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>in</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>the</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>Network</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*.

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Viewing Network Device Models

The **Models** section lists model names of devices in the network.

- To list devices of a given model, click the model name in the left panel.
- To view detailed data for a device from the Models page, click the IP address hyperlink in the center panel.

The Device Viewer opens, listing any current Issues associated with the selected device.  
  
The Device Viewer is not limited to this information. Seven categories of detailed information are provided by the Device Viewer for the displayed network entity. For more information, see *<span style="color: #0000ff">[<u>Inspecting</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>Devices</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>in</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>the</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>Network</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*.

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Summarizing Network Topologies

The **Summaries** tab (**Network** **Explorer** –> **Summaries**) lists routes, subnets, VLANs, Route Targets, HSRPs/VRRP groups, ports, NIOS grids, network views, and VRFs (virtual routing and forwarding instances) in the network.

- To list inventoried items, click the desired category in the left panel.
- To restrict the center panel table to a specific device group, click the group name in the **Select** **Device** **Groups** panel (on the right side of the window).
- To view details about any item in the left panel, click the row for that item. Details appear in the center panel.

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Summarizing Network Routes and Subnets

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Click the **View** **All** **Routes** link to list all VLANs in the center pane. Then apply a filter, such as an IP address, to isolate them for a device. This effectively allows you to view the routing table for a device in NetMRI.


The **Routes** section lists routes reported by all devices in the network, from each of their interfaces, during the last network polling cycle by NetMRI. Routes are listed by the protocol (**proto**), the route's IP, the **VRF** **Name** containing the interface and its VRF route distinguisher, and the **Count**, which is the number of devices reporting that particular route during the last polling period. All IPv4 and IPv6 routes are listed for all router and switch-router devices.

- To list devices comprising the route, click a route in the left panel. The center panel refreshes to show the device reporting the route, the route's interface from which it was reported, the **Network** **View** for the management IP of the device reporting the route, and the route's **Next** **Hop**. The list also shows each device's **Route** **Distinguisher**. This feature can be helpful in tracing a path.
- To view detailed data for a device, click the IP address hyperlink in the center panel. The Device Viewer opens.

The **Subnets** section lists subnets found in the network, and the **Network** **View** for the management IP of the device reporting the subnets, and its **VRF** **Name** (if any). The list of subnets is compiled from all router and switch-router devices discovered and cataloged by NetMRI, including any virtual device contexts (VDC).

- For subnets, the **Count** is the number of devices discovered as part of the subnet during the last polling period.
- To list all devices in the subnet, click a subnet in the left panel.
- To view detailed data for any device in a subnet, click the IP address hyperlink in the right pane. The Device Viewer opens listing any current Issues associated with the selected device.

The Device Viewer is not limited to this information. Seven categories of detailed information are provided by the Device Viewer for the displayed network entity. For more information, see *<span style="color: #0000ff">[<u>Inspecting</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>Devices</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>in</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>the</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)*<span style="color: #0000ff">[<u>Network</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593023)</span>*.

## > Macro (anchor)

> Macro (anchor)

Summarizing VLANs, Ports, Virtual Groups and NIOS Grids

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Click the **View** **All** **VLANs** link to list all VLANs in the center panel. Then apply a filter to isolate them for a device. Similar links are used for the **Ports** and **NIOS** **Grids** accordions.

The **VLANs** section lists VLANs found in the network.

- To list devices supporting a VLAN, click a VLAN name in the left panel. The VLAN Viewer appears, listing the devices by IP address that are associated with the VLAN.   
The main page also displays the VLAN Root Details listing for the selected VLAN, and the table of devices associated with the VLAN, listing by IP address. Clicking an IP address in the VLANs table also brings up the Device Viewer.
- Also check the Topology Viewer (**Network**** Explorer **–> **Topology**) to see a graphic presentation of the VLAN path.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Reserved VLANs are not displayed. They are included in the API.

The **Ports** section lists ports found in the network. This table is a superset of all the ports listed in the Switch Port Manager page. If your license is active only for Switch Port Manager, the switch ports discovered and polled by NetMRI are the only ports listed here.

- To list devices using a given port number, click the port number in the left panel.

The **NIOS** **Grids** section lists any Infoblox NIOS Grid Masters found in the network.

- To list a Grid Master's members, click the Grid Master in the left panel. All associated Grid member appliances appear in the center panel.

## > Macro (anchor)

> Macro (anchor)

Summarizing HSRP/VRRP Groups

You can list all HSRP/VRRP Groups managed by NetMRI, or the HSRP/VRRP groups that are associated with a particular device group.

The **HSRPs/VRRP****Groups** section lists Hot Standby Router Protocol (HSRP) groups and Virtual Router Redundancy Protocol (VRRP) groups found in the network, starting with the **Virtual ****IP** address of the group. Types are labeled in the **Type** column as HSRP or VRRP. The protocols are used for fault-tolerant> Macro (anchor)

 default gateway configuration across two or more devices in case the primary gateway router becomes inaccessible.

- To view details for an HSRP or VRRP, click a group in the left panel. The corresponding viewer opens in a popup window. The devices participating in the group are listed in the viewer.

## > Macro (anchor)

> Macro (anchor)

> Macro (anchor)

Summarizing Route Targets

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Click the **View** **All** **Route** **Targets** link to list all route targets in the center panel. Then apply a filter to isolate them for a device or a network view.

VRFs use route targets to specify how routes will be shared between different VRF networks. The typical format of a Route Target is two numeric values separated by colons. For example:

`27000:100`

The **Route** **Targets** summary in the left panel shows the list of Import and Export route targets that are defined in VRF-aware devices in the managed networks. The VRF RD (route distinguisher) values are listed in a separate column, and you can click on the link for each VRF's network view, which opens the Network Viewer window. This window also lists all devices forming the VRF network.

Selecting a route target causes the center panel to display all the instances where it is being used, along with details of the device and the VRF. This is helpful to understand how VRFs and particularly VRF-Lite are configured across the network.

## > Macro (anchor)

> Macro (anchor)

Summarizing Network Views

To view the complete list of network views, click the **View** **all** **Network** **Views** link at the top of the list. You can list all network views containing networks managed by NetMRI, or the network views that are associated with a particular device group. Each network view listed in the left panel provides a link to the Network View window.

The **Count** value indicates the number of interfaces sharing the same network view. Each instance is differentiated by the interface name.

If you have a significant number of network views, you can apply a filter by clicking the **Filters** button at the top of the table, choosing the **Network** **View** option from the **Select** **a** **New** **Field** selector, and entering the name of the network view.

Network Views represent each network that is managed and monitored by NetMRI. For more information about network views and how to use and configure them, see *<span style="color: #0000ff">[<u>Configuring</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23592988/Introduction#Introduction-bookmark99)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23592988/Introduction#Introduction-bookmark99)*<span style="color: #0000ff">[<u>Network</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23592988/Introduction#Introduction-bookmark99)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23592988/Introduction#Introduction-bookmark99)*<span style="color: #0000ff">[<u>Views</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23592988/Introduction#Introduction-bookmark99)</span>* and its subsections.

## > Macro (anchor)

> Macro (anchor)

Summarizing VRFs

After virtual routing and forwarding (VRF) networks are discovered and mapped to network views, you can use the VRFs summary to view the complete list of VRF instances throughout the managed network. You can sort the VRF information by any data column to see the relationships between VRF instances in virtual networks.

To view the complete list of VRF instances, click the **View ****all ****VRFs** link at the top of the list. By default, the VRFs are listed by VRF name. Data columns include the following:

- **VRF** **Name**: Displays the name of the VRF instance.
- **VRF** **Description**: Displays a description if the VRF instance is configured with a description on the device.
- **Route** **Distinguisher**: VRFs use route distinguishers to distinguish one set of routes (one VRF) from another. The route distinguisher is a unique number pre-pended to each route within a VRF to identify it as belonging to that particular VRF. The discovered route distinguisher value is listed here if a virtual network instance uses this value. For more information, see *<span style="color: #0000ff">[<u>Summarizing</u>](#EvaluatingIssuesinNetMRI-bookmark333)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark333)*<span style="color: #0000ff">[<u>Route</u>](#EvaluatingIssuesinNetMRI-bookmark333)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark333)*<span style="color: #0000ff">[<u>Targets</u>](#EvaluatingIssuesinNetMRI-bookmark333)</span>*.
- **Device** **Name**: The discovered name of the device hosting the VRF instance.
- **IP** **Address**: The IP address of the managed VRF-hosting device. This value is a hotlink to the Device Viewer.
- **Network** **View**: The network view of the managed VRF-hosting device. This value is a hotlink to the Network Viewer window.
- **VRF** **Network** **View**: The network view to which the VRF is assigned. This value is a hotlink to the Network Viewer window. Note that this value may differ from the **Network** **View** identifier.

If you have a significant number of virtual routing and forwarding networks, you can apply a filter by clicking the Filters button at the top of the table, choosing the **VRF****Name** option from the **Select****a****New****Field** selector, and entering the name of the VRF. You can also filter by network view in the same way, or combine the two filters to isolate all VRF instances in a specific network view.

# > Macro (anchor)

> Macro (anchor)

> Macro (anchor)

Using the Topology Viewer


> ⚠️ **Note**
> ⚠️ 
> ⚠️ Infoblox also provides a separate software> Macro (anchor)
> ⚠️ 
> ⚠️  utility to export NetMRI topology maps of all types to Microsoft Visio-compatible graphics files for editing and printing. This utility, the Topology Visio Export Tool, works with all six of the topology views from NetMRI.


**The ****Topology ****Viewer**** (****Network ****Explorer **–> **Topology****) enables you to visualize the network from the following viewpoints:**


- The global *<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark327)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark327)*<span style="color: #0000ff">[<u>View</u>](#EvaluatingIssuesinNetMRI-bookmark327)</span>*, where you can view different parts of the network based on the network type. The aggregate, which shows all active links of every type, Link Discovery Protocols, Serial Links, and Switch Forwarding which shows only Ethernet-switched connections throughout the network.
- The *<span style="color: #0000ff">[<u>L2</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark347)*<span style="color: #0000ff">[<u>nHop</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark347)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark347)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*, showing the Layer 2 switching paths of the network.
- The *<span style="color: #0000ff">[<u>L3</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark350)*<span style="color: #0000ff">[<u>nHop</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark350)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark350)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*, showing the Layer 3 switching/routing paths of the network.
- The *<span style="color: #0000ff">[<u>L2/L3</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark353)*<span style="color: #0000ff">[<u>Most</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark353)*<span style="color: #0000ff">[<u>Likely</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark353)*<span style="color: #0000ff">[<u>Path</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark353)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark353)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*, indicating the spanning tree paths preferred by switched network traffic in the network.
- The *<span style="color: #0000ff">[<u>L3</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark355)*<span style="color: #0000ff">[<u>Most</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark355)*<span style="color: #0000ff">[<u>Likely</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark355)*<span style="color: #0000ff">[<u>Path</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark355)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark355)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*, indicating the routed paths preferred by most packet flows in the network.
- The *<span style="color: #0000ff">[<u>VLAN</u>](#EvaluatingIssuesinNetMRI-bookmark357)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark357)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark357)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark357)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark357)</span>*, mapping the paths of VLANs throughout the network.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ The Most Likely Path option requires the selection of a source network view.

**Search**, CSV Export and Refresh Grid tools appear for all lists in the left pane of the Topology page. The **Search** feature allows contextual search from within any list for an IP address or a string of characters within the specific list of polled information. CSV Export enables exporting the current tabular list to a tab-delimited data file suitable for opening in Microsoft Excel<sup>TM</sup>. You can also refresh any list by clicking the Refresh Grid tool. If changes occur after a refresh, the topology will redraw.

In all topology types (*<span style="color: #0000ff">[<u>L2</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark347)*<span style="color: #0000ff">[<u>nHop</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark347)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark347)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*, *<span style="color: #0000ff">[<u>L3</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark350)*<span style="color: #0000ff">[<u>nHop</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark350)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark350)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*, and so on) clicking on a device in the left-panel list displays a Hop Count selector. This selector changes its fields based on the protocol. The figure to the left shows an L3 n Hop selector, in which you can choose a Hop Count from 1 to 4, and the protocol to view. The protocol you choose may or may not be active for the current device.

After you generate a graph, follow the topics below to change and enhance the graph.

Devices of different types appear differently in the View. Firewalls and virtual hosts such as Cisco ASA security devices and Nexus switches will show different icons.

## > Macro (anchor)

> Macro (anchor)

Network Views Information in Topologies

The **L2** **nHop**, **L3** **nHop**, **L2/L3** **Most** **Likely** **Path**, and **L3** **Most** **Likely** **Path** topology menus all support the **Network** **View** data point, listing the network views in which each listed device participates. Clicking the link in this column for any device opens the Network Viewer window.

## > Macro (anchor)

> Macro (anchor)

Using the Topology Shortcut Menu

Right-clicking on any device icon on the Topology pane provides a selection of device exploration features. Its contents change based on the selected device.

- **Device** **Viewer:** Opens the Device Viewer for the chosen device.
- **Config** **Explorer:** Opens the Device Viewer's **Config** **Explorer** page for the chosen device. You can browse the list of configs in the device and edit existing config files.
- **View** **Running** **Config:** Displays the currently running configuration for the chosen device in a Configuration Viewer window.
- **Changes:** Opens the Device Viewer's **Network** **Analysis** –> **Changes** page for the chosen device.
- **Issue** **List:** Opens the Device Viewer's **Network** **Analysis** –> **Issues** page for the chosen device. This page lists all Error, Warning, and Info issues for the chosen device.
- **Policy** **Compliance:** Opens the Device Viewer's **Network** **Analysis** –> **Policy** **Compliance** page for the chosen device. The current device's status in DISA-standard security and stability levels is outlined here, with links to configuration policy analysis functions from this page.
- **L2** **nHop:** Displays the *<span style="color: #0000ff">[<u>L2</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark347)*<span style="color: #0000ff">[<u>nHop</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark347)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark347)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark347)</span>* in a separate window, showing the Layer 2 switching paths directly associated with the current device.
- **L3** **nHop:** Displays the *<span style="color: #0000ff">[<u>L3</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark350)*<span style="color: #0000ff">[<u>nHop</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark350)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark350)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark350)</span>*<u> </u>map in a separate window, showing the Layer 3 routed switching paths directly associated with the current device.
- **L2/L3** **Path** **Viewer:** Displays the *<span style="color: #0000ff">[<u>L2/L3</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark353)*<span style="color: #0000ff">[<u>Most</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark353)*<span style="color: #0000ff">[<u>Likely</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark353)*<span style="color: #0000ff">[<u>Path</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark353)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark353)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark353)</span>* map in a separate window, indicating the VLAN spanning tree paths directly associated with the current device.
- **L3** **Path** **Viewer:** Displays the *<span style="color: #0000ff">[<u>L3</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark355)*<span style="color: #0000ff">[<u>Most</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark355)*<span style="color: #0000ff">[<u>Likely</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark355)*<span style="color: #0000ff">[<u>Path</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark355)*<span style="color: #0000ff">[<u>Network</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>*[<u> </u>](#EvaluatingIssuesinNetMRI-bookmark355)*<span style="color: #0000ff">[<u>Topology</u>](#EvaluatingIssuesinNetMRI-bookmark355)</span>* map in a separate window, indicating the L3 routed paths directly associated with the current device.
- **Schedule** **Job:** Schedule a job script (CCS or Perl) to run on the chosen device, from the Script Run Now wizard. See *<span style="color: #0000ff">[<u>Creating</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593327/Job+Management+and+Automation+Change+Manager#JobManagementandAutomationChangeManager-bookmark567)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593327/Job+Management+and+Automation+Change+Manager#JobManagementandAutomationChangeManager-bookmark567)*<span style="color: #0000ff">[<u>and</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593327/Job+Management+and+Automation+Change+Manager#JobManagementandAutomationChangeManager-bookmark567)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593327/Job+Management+and+Automation+Change+Manager#JobManagementandAutomationChangeManager-bookmark567)*<span style="color: #0000ff">[<u>Scheduling</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593327/Job+Management+and+Automation+Change+Manager#JobManagementandAutomationChangeManager-bookmark567)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593327/Job+Management+and+Automation+Change+Manager#JobManagementandAutomationChangeManager-bookmark567)*<span style="color: #0000ff">[<u>Jobs</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593327/Job+Management+and+Automation+Change+Manager#JobManagementandAutomationChangeManager-bookmark567)</span>* for more information about job scripting.
- **Execute** **Command:** Opens the Script Run Now wizard, with the **Commands** **to** **be** **Executed** section active. Type in any configuration command.

## > Macro (anchor)

> Macro (anchor)

Using Different Network Topologies

The **Network** view list (**Network** **Explorer** –> **Topology** –> **Network**) shows L2 and L3 network devices and their respective connections, in aggregate or a choice from several individual layer 2 link types.

- To select a network view, in the left panel, open the **Network** section, then click the view type.

The following are Available network views:

- **Aggregate:** Combines the **Link ****Discovery ****Protocols**, **Serial ****Links,** and **Switch ****Forwarding** views. It gives you a graphical depiction of the entire network discovered and polled by NetMRI.
- Pass the mouse over any device icon in the map. A popup message appears listing the name and basic characteristics of the device represented by that icon.
- **Link ****Discovery**** Protocols:** Shows L2/L3 devices using Link Layer Discovery Protocol (LLDP) or Cisco Discovery Protocol (CDP), and their interconnections.
- **Serial ****Links: **Shows L2/L3 devices connected by serial links.
- **Switch**** Forwarding:** Shows L2/L3 devices using switch forwarding.

## > Macro (anchor)

> Macro (anchor)

Adjusting the View

You can zoom in and out of the graphic view, resize the graphical view, and enable or disable visual features, such as the legend.

- To show/hide the Graph Overview, which is a thumbnail view of the entire graphical map of the network, choose **Menu** –> **Graph** **Overview.**
- To zoom in, click **Zoom ****In**, or resize the box in the **Graph ****Overview** to make it smaller.
- To zoom out, click **Zoom ****Out**, or resize the box in the **Graph ****Overview** to make it larger.
- To fit the graph in the panel, click the **Fit ****Content** button.
- To pan the graph, drag the box in the **Graph ****Overview**.

## > Macro (anchor)

> Macro (anchor)

Viewing Data

The following methods are available to view device data in the Topology Viewer:

- To view basic data about a device, hover the mouse over the device.
- To view detailed data about a device, click the device. The Device Viewer opens.
- To view basic data about the link between two devices, hover over the link.
- To view issues for a device, right-click the device, then click **Show**** issues ****on ****Device ****Viewer.** The Device Viewer appears.
- To view a device's configuration file: Right-click the device, then click **View ****Configuration ****for.**
- To generate a new graph with a device as the starting point, right-click the device, and then click **Show**** n ****Hops ****(L2) ****from, ****Show**** n ****Hops ****(L3) ****from, ****Show ****L2/L3 ****path**** starting ****from,** or **Show**** L3 ****path**** starting ****from**.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Graph choices depend on what can be viewed from the selected device.

### Modifying the Graph

You can change the elements shown in the topology graph as follows:

- To restrict devices shown in the graph, select a device group in the **Select** **Device** **Groups** panel. This feature is not available for VLAN graphs.
- To show all the devices in the graph, select **All** **Devices** in the **Select** **Device** **Groups** panel.

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Printing, Exporting, and Changing Topology Views

NetMRI's Topology View provides several tools for manipulating the visual map, including exporting the map as a graphic, printing it, detaching the map into a separate popup window, or refine the current view to show more-specific parts of the map or filter the view by device group, VLAN or other specification.

- To print the graph, click **Menu** –> **Print**.
- To export the graph as an image, click **Menu** –> **Export** **as** **Image**. Printing or exporting the graph reproduces the entire graph, not just the portion currently shown.
- To launch a larger view of the current graph in a separate window, click **Menu** –> **Detach** **View**.
- To show a legend at the bottom of the screen, click **Menu** –> **Legend**.

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L2 nHop Network Topology> Macro (anchor)



**L2** **n** **Hop** (**Network** **Explorer** –> **Topology** –> **L2** **n** **Hop**) shows devices that can be reached from a selected starting device through a chosen number of Level 2 (actually a hybrid of L1 and L2) connections.

1. In the left panel, click **L2** **n** **Hop**.
2. In the left panel, click the row containing the starting device.
3. In the **L2** **n** **Hop** **/** **L2** **Reach-ability** dialog, select a **View** (i.e., connection type such as **CDP**, **Serial** **Links**, **Switch** **Forwarding,** or **Aggregate**).
4. Select a **Hop** **Count. T**he view will show devices reachable in this number of hops or less.
5. Click **OK**.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Setting **Hop** **Count** to **All** stops hops at L3 devices.


In the resulting graph, the name of the starting device is highlighted in green. Devices that cannot be reached, or that are farther away than the **Hop ****Count** are not shown in the resulting view.

Cisco Nexus switches and their virtual device contexts (VDCs) will appear in this view.

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L3 nHop> Macro (anchor)

 Network Topology

**L3** **n** **Hop** shows all active devices that can be reached from a selected starting device in the network through a chosen number of routed Level 3 connections. In the resulting graph, the name of the starting device is highlighted in green. Devices that cannot be reached, or that are farther away than the **Hop** **Count** are not shown in the resulting view.

1. In the left panel, click **L3** **n** **Hop**.
2. In the left panel, click the row containing the starting device.
3. In the **L3** **n** **Hop** dialog, select a **Hop** **Count** and a **Protocol**.
4. Click **OK**.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ L3 connections are directional. A hop to a neighboring router and back is considered two hops. If you set **Hop** **Count** to **1**, you will not see any return hops to the starting device.


Juniper M5 and> Macro (anchor)

 M10 routers that are running virtual device contexts will have their VDCs appear in this list, appearing as any other router.

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L2/L3 Most Likely Path Network Topology> Macro (anchor)



**L2/L3** **Most** **Likely** **Path** shows the most likely path traffic would take between two devices, including both Layer 2 and Layer 3 connectivity.

1. In the left panel, click **L2/L3** **Most** **Likely** **Path**.
2. In the left panel, click the row containing the starting device.
3. In the **L2/L3** **Most** **Likely** **Path** dialog, select the source network view from the **Network** **View** dropdown menu.
4. In the **L2/L3** **Most** **Likely** **Path** dialog, select the ending device. Shorten the device list by selecting a **Device** **Group** or by entering a search term.

In the resulting graph, the name of the starting device is highlighted in green, and the name of the ending device is highlighted in red.

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L3 Most Likely Path Network Topology> Macro (anchor)



**L3** **Most** **Likely** **Path** shows the most likely path that routable Layer 3 traffic would take between a source device and a destination device, ignoring Layer 2 connectivity between Layer 3 devices. Complete the following:

1. In the left panel, click **L3** **Most** **Likely** **Path**.
2. In the left panel, click the row containing the starting device.
3. In the **L3** **Most** **Likely** **Path** dialog, select the source network view from the **Network** **View** dropdown menu.
4. In the **L2/L3** **Most** **Likely** **Path** dialog, select the ending device. Shorten the device list by selecting a **Device** **Group** or by entering a search term.

In the resulting graph, the name of the starting device is highlighted in green, and the name of the ending device is highlighted in red.

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VLAN Network Topology> Macro (anchor)



> ⚠️ **Note**
> ⚠️ 
> ⚠️ Only VLANs with a spanning tree root that is managed by NetMRI can be viewed in the appliance.

In the network view menu, **VLAN** shows the spanning tree that a given VLAN uses on the network.

1. In the left panel, click **VLAN**.
2. In the left panel, click the VLAN you are interested in.

In the resulting topology chart, the root bridge is displayed at the top and the leaf nodes are displayed below. Active and disabled links are indicated in the chart. The farther the distance from the root bridge, the higher the cost in the L3 VLAN path. All possible connections are shown, including disabled ones. Spanning tree port blocking is indicated by a gray X at the end of a connection. If a port shows an error, it is indicated by a red X.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ VLANs can have identical names as long as the root bridge is different.

VLAN graphs cannot be filtered by device group names in the **Select** **Device** **Groups** panel.

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Other Network View Operations

> ⚠️ **Note**
> ⚠️ 
> ⚠️ It may take several minutes for NetMRI to reflect the new status when changing the license status of a device in the network.


To force devices to the top of a queue, complete the following:

1. Click the check box for the device(s), then click **Discover** **Next** (below the table).
2. Click the check box for the device(s).
3. Click **License** (below the table).
4. In the **License** **Status** dialog, select the desired license status (**Automatic**, **Licensed,** or **Unlicensed**), and then click **OK**.

NetMRI gives explicitly licensed devices priority in determining which devices to manage. Unlicensed devices continue to be managed by the appliance, but only basic discovery data is periodically collected from them.

To force immediate discovery of devices, click the check box for the device(s), and then click **Discover** **Now** (above the table). NetMRI will execute the processes required against a device to complete discovery. These include SNMP credential collection, SNMP data collection, device group assignment, and CLI credential collection.

To delete devices from NetMRI's database, complete the following:

1. Click the check box for the device(s).
2. Click **Delete** (below the table).
3. In the Delete dialog, select **Exclude** **from** **discovery** (optional).
4. Click **Yes** to confirm the deletion.

If a device continues to appear in collected data, NetMRI will re-list the device unless you choose to exclude the device from discovery when it is deleted.

To un-manage devices, complete the following:

1. Click the check box for the device(s).
2. Click **Unmanage** (below the table).
3. Confirm the operation.

Unmanaged devices remain discovered, but NetMRI will not collect data from them. The appliance will not obtain details, — such as vendor, model, and operating system version — because SNMP access is required to complete those processes.

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Using the Interface Viewer

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Switch Port Management provides a more global view of the network's complement of switched interfaces. See *<span style="color: #0000ff">[<u>Switch</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593009)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593009)*<span style="color: #0000ff">[<u>Port</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593009)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593009)*<span style="color: #0000ff">[<u>Management</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593009)</span>* for more information.


The **Interface** **Viewer **is accessed by clicking any hyperlinked interface identifier in the **Interface** column of the Interface Configuration list (located in **Network** **Explorer** –> **Inventory** –> **Interfaces** –> **Interface** **Config**) It displays low-level interface data and network phenomena affecting the selected interface during a specified time period. The top panel lists basic information about the chosen interface, including the **Type**, **Speed**, **Status** (Up or Down, along with the date the interface was discovered to be changed in state), the host device's **Network** **View**, the **Device** **IP**, its interface **MAC** **Address,** the **Interface** **IP** (if any), and Ethernet **Port** **Fast** and **Encapsulation** settings where applicable (this value appears only when the interface is using 802.1Q tagging).

If a physical interface also contains logical subinterfaces that are locally assigned to VRFs, the **Encapsulation** field will appear in the top panel of the Interface Viewer window, also listing the protocol.

When an interface is locally assigned to a Network View, the **Local** **VRF** field appears in the top panel of the Interface Viewer window.

By default, the Interface Viewer displays any neighboring interface information for the selected interface. The assumption is that the selected interface is actually administratively On and active on the network. Otherwise, the Interface Viewer shows a blank page.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ Click the icon at the top of the Interface Viewer to open the Device Viewer for the device hosting the current interface, or the Live Interface viewer for the currently selected interface. Also, to search for interfaces in the On position, type the word "**on**" into the search box in the Interface Config page before attempting to access the Interface Viewer.


The Interface Viewer also provides a list of Access Control Lists that are bound to the current interface. To change the date or period for data displayed in the Interface Viewer, see *<span style="color: #0000ff">[<u>Setting</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593059)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593059)*<span style="color: #0000ff">[<u>the</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593059)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593059)*<span style="color: #0000ff">[<u>Date</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593059)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593059)*<span style="color: #0000ff">[<u>and</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593059)</span>*[<u> </u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593059)*<span style="color: #0000ff">[<u>Period</u>](https://infoblox-docs.atlassian.net/wiki/spaces/NETMRI741AG/pages/23593059)</span>*.

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Viewing Neighboring Interfaces

The **Neighbors** page (**Interface** **Viewer** –> **Interface** –> **Neighbors**) lists the MAC addresses, associated **VRF** **Name,** **Neighbor** **VRF** **Name** (if any), the **Network** **View**, IP addresses, interfaces, and other data for neighbors of the currently displayed interface. If you select an interface that is administratively On and is active in the network, the Interface Neighbor information automatically appears. Otherwise the neighbor information remains blank.

Associated information provided includes the VLAN and/or trunk interface, the neighbor's MAC address, the neighbor type, and the Neighbor Assurance value.

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Viewing Network Performance Measurements

Under **Performance** in the Interface Viewer, the **Summary** page (**Interface** **Viewer** –> **Performance** –> **Summary**) lists high-level statistics for inbound and outbound traffic for the selected interface. A table appears in the Interface Viewer, showing Counts, Rates and Percentages for Inbound and Outbound Octets, Packets, Unicast packets, Non-Unicast packets, Multicast packets, Broadcast packets, Discards, Errors, Changes, Alignment Errors, FCS Errors, and Late Collisions. The following statistics cover the entire selected interface, cumulative for all subinterfaces if any.

- **Rates:** This page (**Interface** **Viewer** –> **Performance** –> **Rates**) shows inbound and outbound throughput and related rates for the interface, including Packet Rate, Broadcast Rate, Discard Rate, and Error Rate.
- **Percents:** This page (**Interface** **Viewer** –> **Performance** –> **Percents**) shows inbound and outbound traffic statistics expressed as a percentage of the total output, including **%** **Utilization**, **Broadcast** **Percent**, **Discard** **Percent, **and **Error** **Percent.**
- **Counts:** This page (**Interface** **Viewer** –> **Performance** –> **Counts**) displays inbound and outbound traffic statistics expressed as counts, including columns of statistics for Octet Count, Packet Count, Broadcast Count, Discard Count, and Error Count.
- **Charts:** This page (**Interface** **Viewer** –> **Performance** –> **Charts**) provides charts that show throughput, broadcasts/second, errors/second, and discards/second. Use the **Measure** list at the top of the page to select **Rate** or **Percent** for the charts' vertical axes.

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Changing Performance Data Collection Settings

The **General** **Settings** page (**Interface** **Viewer** –> **Settings** –> **General** **Settings**) enables you to apply or override the parent group's performance data collection setting, under the **Performance** **Statistics** **Collection** setting. Group settings are defined in the Settings icon **–**> **Setup** section –> **Collection** **and** **Groups** page –> **Groups** tab –> **Interface** **Groups** side tab.

To ensure collection of all performance data for the specific device, choose the **Enabled** option.

Choose the **Use** **Default** option if you want performance information collection to only use the parent Interface Group's settings.

Interface performance data covers a broad selection of network phenomena, including but not limited to the following: port throughput, bandwidth utilization, packet errors percentage, broadcast packet percentage, and packet discard percentage.

A second option, **Sw****itch**** ****Port**** ****Management**** ****Control**> Macro (anchor)

**,** enables or disables the current interface from management by the Switch Port Manager.

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Viewing Interface Histories

Interface histories consist primarily of First Seen and Last Seen values, indicating the date and time when the interface was first seen by the appliance, and the date and time when the appliance last polled the device and interface. Other information fields in the Interface History table include, but are not limited to, the following:

- **Device** **Name: **The name of the device hosting the interface.
- **IF** **MAC:** The MAC address of the interface.
- **If** **Oper** **Status:** Shows whether the interface is operationally Up or Down.
- **If** **Admin** **Status:** Shows whether the interface is administratively Up or Down.

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Port Control Settings

NetMRI allows administrators to control basic operational settings for managed routers and> Macro (anchor)

 switches. The following functions are available in the Port Control page (**Interface** **Viewer** –> **Settings** –> **Port** **Control** **Settings**):

- **Admin** **Status:** Set the port to administratively Up or administratively Down;
- **Interface** **Description:** A text label describing the port;
- **VLAN** **ID/Name**: Change the VLAN assignment for a switch interface. Click **Edit** for any feature.
  - For **Admin** **Status,** ports can be set to Up or Down from the drop-down menu.
  - For **VLAN** **ID/Name**, the feature will work for switch or switch-router ports that support VLAN assignment. Choose the VLAN ID from the **VLAN** **ID** drop-down list (new values are not entered in this location) and the VLAN Name from the **VLAN** **Name** drop-down list. A port can be set to disable any VLAN assignment by enabling the **No** **VLAN** checkbox.

In all cases, click **Save** to commit settings.

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Editing the Port Lis> Macro (anchor)

t

Ports listed in the **Port** **List** page (Settings icon –> **Setup** –> **Port** **List**) are probed when **Port** **Scanning** is enabled at Settings icon –> **Setup** section –> **Collection** **and** **Groups** –> **Global** tab –> **Network** **Polling** panel.

To add a port to the list, complete the following:

1. In the **Add** **Port** panel, select the port's **Protocol, **either **TCP** or **UDP**.
2. Type the **Port** number.
3. Type the port's **Service**.
4. Click **Add**.

To delete a port from the list, click the **Delete** button for the respective port.

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Viewing Device Collection Stat> Macro (anchor)

us

The **Collector** **Status** page (Settings icon –> **Setup** –> **Collector** **Status**) shows the internal processing being performed by NetMRI. This page is used primarily for technical support purposes.

A property group is a collection of SNMP variables that NetMRI polls from a given device type and vendor at a given frequency. The collection of SNMP variables in a property group are not visible to the user.

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Using the Interface Live Viewer> Macro (anchor)



The **Interface** **Live** **Viewer** allows you to view and track traffic and event trends for any chosen network interface, and save chart data and images for the results. The Interface Live Viewer displays near-real-time graphs for the following interface properties:

- Throughput in / utilization in
- Throughput out / utilization out

Throughput/Utilization graphs depend on the Display Mode setting, either choosing Rate displays throughput or choosing Percent displays utilization.

- Broadcast in
- Broadcast out
- Errors in
- Errors out
- Discards in
- Discards out

To access the Interface Live Viewer, complete the following:

1. Right-click any interface hyperlink, then click **Interface** **Live** **Viewer** in the pop-up menu.

–or– In the Interface Viewer, click the **Viewer** **Tools** icon, then click **Live** **Viewer** in the drop-down menu.  
–or– In the **Interface** **Viewer** –> **Performance** section –> **Charts** page (which displays static data), and then click the **Live** **Viewer** link next to the **Measure** field.

Within the graph:

- To see underlying data at a specific time, hover over that time in the graph.
- To hide or show a line, click the box to the left of the name in the legend below the graph.

If too many lines make it difficult to interpret the graph, hide lines having less value by clicking the colored check box for any data type at the bottom of the chart window.

To hide or show data callouts within the graph, complete any of the following:

- In the graph, click the line for which you want to hide/show data.
- In the legend, click the name (underlined = data callout displayed, name not underlined = data callout hidden).

In the Interface Live Viewer's control bar above the graph, you can perform the following:

- To change the time period shown in the graph, select the time in the **Display** **Window** drop-down list.

The display window of 5 or 15 minutes is based on an ideal polling frequency as defined in the **Live** **Interface** **Poll** **Frequency** setting (at Settings icon –> **General** **Settings** –> **Advanced** **Settings**). The display window depends on the following factors: load on the device being polled, load on the appliance polling the device, and network round trip time between the device and NetMRI. Therefore, the actual display window time may be longer than the value selected in the **Display** **Window** drop-down list.

- To view historical data, click **Show** **History** at the left end of the control bar. In the **Show** **Historical** **Data** dialog, specify the day and time for the historical data's starting point. Historical data is always shown in a 15-minute window.
- To pause the display, click the **Pause** button. This does not pause the underlying data collection.
- To resume playing the display (after pausing), click the **Play** button.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ If the display remains paused after 24 hours, data collection will stop.


- To change the vertical axis units, select the desired units in the **Display**** Mode** drop-down list.
- To export data used to create the graph, click the **CSV**** Export** button.
- To export the graph as an image, click the **Image ****Export** button.

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Interface Live Viewer settings

Two settings for the Interface Live Viewer are provided in the Settings icon –> **General ****Settings **–> **Advanced**** Settings** page under **Data ****Collection**:

- **Live**** Interface**** Poll**** Frequency** sets the SNMP polling frequency (5 seconds to 60 seconds in 5 second increments).
- **Live**** Interface ****Poller ****Limit** sets the maximum number of interface pollers that can run simultaneously (1 to 10).

The polling engine continues to run for 15 cycles (where one cycle = Live Interface Poll Frequency) after the Interface Live Viewer window is closed. If you reopen the Interface Live Viewer before the 16th cycle, you will see live data collected during that time. If reopened after the 15th cycle, the Interface Live Viewer will start displaying a fresh data set.