Analysis › Impact Analysis › Validate a QoS Policy Implementation

Validate a QoS Policy Implementation

A QoS policy can improve response times for remote users by prioritizing critical application traffic. This example shows how to validate that it actually did. In this example, the policy was implemented yesterday afternoon just after lunch.

1. Click the Engineering page
2. Click Performance, Networks on the Show Me menu.
3. Click Settings and make the following selections:
   • Timeframe: Last 24 Hours
   • Metric: Network Round Trip Time
   • Application, Server, and Network: No Selection
4. Click OK.

   The following report appears:

   

This view of the daily Network Round Trip Times shows the networks with the highest latency. The 56 K and VPN connections typically exhibit the slowest response.

The QoS policy was implemented in the Pittsburgh, PA link. Effects of the QoS policy change are shown in the Network Round Trip Time view:

The time before the QoS policy being applied shows a marked contrast to the faster times after the policy was implemented.