Cisco Cisco Prime Infrastructure 3.0 Weißbuch

 

 

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Page 15 of 68 

If Flexible NetFlow or Unified Monitoring has been deployed on all sites, at least on the WAN edge, then a NetFlow 

application can be used to sort the top sites based on the site prefixes. 

The mapping between site names and prefixes should have been defined using Cisco Prime Infrastructure. Please 
refer to the “Device Discovery” section in the Appendix for more information. 

A traffic statistics profile gives information like bytes and packets as well as IP source and destination addresses 

and application names. From that, one can extract and sort the top sites based on throughput. 

In order to obtain a deeper understanding of how Cisco Prime Infrastructure could achieve this, please refer to the 
later “Busiest Site/Location” section. 

So far we have seen how we could check the application usage on a global basis or per site. There could also be a 

need to troubleshoot the application usage on a specific interface. 

A first step would be to check the top interface utilization. 

Browse to Dashboard  Overview  Network Interface. 

 

The interesting dashlet here is Top N Interface Utilization. 

In order to obtain a deeper understanding of how Cisco Prime Infrastructure could achieve this, please refer to the 
later “Application Throughput over Time over an Interface” section. 

Routers have a list of applications supported based on a Protocol Pack, but most enterprise customers also have 

homegrown applications that they want to monitor. 

When NBAR2 is enabled and lists a large number of unknown applications, the network operator will have to check 

whether the Protocol Pack needs to be updated to accommodate the new applications or if a specific application is 

used in the enterprise that is not directly supported by NBAR2.