Describes the QoS Insight tab, which provides network-wide visibility into application traffic distribution across QoS queues, including drop rates and detailed flow analysis via graphs and charts for all detected devices, applications, VPNs, interfaces, and queues. Users gain insight into bandwidth consumers and dropped packets for comprehensive network analysis.
The QoS Insight tab displays network-wide information about which application traffic entered which QoS queues on the devices that the trace detects. This information includes all the hops for the traffic.
This tab is not available for consolidated insight summaries.
To display information on this tab, enable the QoS Insight option when you start the trace.
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QoS Drop Rate graph: Provides information about the packet or byte drop rates for the selected devices over the period of the trace.
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QoS - Applications Distribution Sankey chart: Provides detailed information about the traffic spectrum and QoS processing at a particular time. The chart illustrates forwarded or dropped traffic that occurs in a flow that goes from an application to a VPN to a physical interface to a queue.
To provide complete information about bandwidth consumers that cause dropped packets, this tab displays information for all the applications on a device, regardless of the applications that you choose by using the Application filter when you start a trace. It also displays information for VPN0 and all the service VPNs, regardless of the service VPNs that you choose by using the VPN filter when you start the trace.
The graph and chart display information for each device that appears in the Devices field.
The chart displays information for each item that appears in the Applications , VPNs , Interfaces , Queues , and Forward/Drop fields. All the items that the trace detects are displayed in these fields by default, except items with a packet per second (PPS) rate of less than 0.05. You can remove an item by clicking the X next to its name, and add an item by choosing the item from a corresponding drop-down list.
Click Packet to display packet drop rate information in the graph and packets per second (PPS) information in the Sankey chart. Click Byte to display byte drop rate information in the graph and kilobits per second (Kbps) information in the Sankey chart.
Hover your cursor over a data point in the graph to display more detailed information. Click a data point in the graph to update the Sankey chart for that data point. Hover your cursor over a data point in the Sankey chart to display more detailed information.