Medianet Reference Guide - Cisco

Chapter 6
Medianet Management and Visibility Design Considerations
Cisco Network Analysis Module
provider network. The downside to this approach, however, is that you may have to manually combine
the monitoring and reporting statistics from the separate aggregation groups to gain a view of all the
traffic within a single assured forwarding (AFx1, AFx2, and AFx3) class. Alternatively, the AFx1, AFx2,
and AFx3 traffic can be placed into a single aggregation group (for instance AF41, AF42, and AF42 all
placed into a multimedia-conferencing group). This makes it easier to view the overall amount of traffic
within a particular AF class, but at the loss of the information regarding if or how much of the traffic
was marked down.
After the diffserv aggregation profile has been created, it must be applied to monitor each data source in
which it is desired to see traffic statistics, application statistics, and/or host statistics; based on the
aggregation groupings defined within in the profile. An example of this is shown in Figure 6-11, in which
the 12-Class-QoS diffserv profile has been applied to the NDE source corresponding to a WAN edge
router.
Figure 6-11
Application of the Diffserv Aggregation Profile to an NDE Source
When applied, the traffic, application, and/or IP host statistics can be viewed as current rates or
cumulative data. Figure 6-12 shows an example of the output from the traffic statistics shown as current
rates.
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Medianet Reference Guide
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