This section explains
Media Path Analysis
This chapter provides
information on the various methods to analyze media path analysis.
Analyze Media Paths Using VSAA
The Video SLA Assessment Agent (VSAA) is used in Cisco Prime
Collaboration Assurance to provide network path characteristics (that is,
latency, jitter, and packet loss) metrics before deploying or upgrading Cisco
Video, TelePresence, or IP Video Surveillance (IPVS) systems and site
Before You Begin
If you have deployed Cisco
Prime Collaboration Assurance in MSP mode, Media Path Analysis is not supported
in a NAT environment.
Verify that the VSA
Agent is up and running at the two endpoints, and synchronized to the NTP
server. You can download the VSA Agent software from the Cisco Prime
software download site
on Cisco.com. See
Video SLA Assessment Agent 3.1
Installation Guide for the installation guidelines.
||Enter the required assessment
Table 1 Profile Details
Displays the profile settings
you want to assess. RTP packets sent will be of based on the device type.
Number of devices or streams
you want to add to the network. You can add upto five devices.
DSCP value indicates priority
to traffic quality. The highest quality DSCP value is selected to ensure good
quality video streaming.
You must use CTS1000 profile
to deploy CTS 500 and 1000 and CTS3000 profile to deploy CTS 3000. You can
create, edit, and delete profiles.
VSA Agent Assessment
For the individual
streams, you can view the topology (layer 2 and layer 3) for the selected
direction between endpoints in the
You can view the
detailed troubleshooting workflow status for the top level and the individual
streams using the
. The VSA Agent Assessment result also provides details on the
path through the Path Assessment tab. You can view the troubleshooting summary
information for testable devices, nontestable device, devices with packet loss threshold violation, devices with
jitter threshold violation, and devices with DSCP violation.
A set of tests are
run for the devices determined during troubleshooting. To start the Path
Assessment test, click
Assessment Tests, after the proactive troubleshooting is complete
The Test Result tab
displays the following charts. For these charts, only the results of last
twenty tests are displayed.
Figure 2. Peak-to-Peak
Figure 3. Packets Lost