---
title: "Viewing a Device's Quality of Service Status and Settings"
canonical: "https://docs.infoblox.com/space/netmri754/105944659/Viewing%20a%20Device's%20Quality%20of%20Service%20Status%20and%20Settings"
format: markdown
---
NetMRI performs data collection and analysis of router operational data that provide visibility into the operation of Quality of Service (QoS) classification and routing of network traffic. The Cisco Class-Based Quality of Service (CBQos) functionality is typically used to identify and rank packets according to their importance to the organization and queue them in a way that guarantees a specific quality of service as packets transit the network.

The **QoS** page and its tables apply only to QoS information for Cisco routers, displaying the number of packets and drops per Quality of Service queue during the time period (above the table) selected for the page. The QoS page divides into the three following tabs:

- **QoS** **Table:** Shows the broad picture of QoS operation in the chosen device.
- **QoS** **Daily** **Table:** Daily performance records of the current router's QoS configuration.
- **Raw** **QoS** **Data:** Raw packet counts for each of the queues for the currently selected router.

Proper QoS operation depends on two factors. First, the configuration must be done correctly across many devices. Any difference in configuration may result in packets not being properly queued, resulting in high latency, jitter or packet loss, particularly on congested links.

The second factor involves monitoring the operational characteristics of QoS. Operational characteristics include elements such as packet volume per queue and packet drops per queue. These are reflected in the **QoS Table** and **QoS** **Daily** **Table**. The operational data can indicate network misconfigurations and data flow changes that no longer match assumptions made during the network's design.