Cisco Cisco Prime Infrastructure 2.0 Installation Guide

  flow monitor PerfMon

! Enter RTP monitor metric configuration mode.

  monitor metric rtp

!Specifies the minimum number of sequential packets required to identify a stream as being an RTP flow.

  min-sequential 2

! Specifies the maximum number of dropouts allowed when sampling RTP video-monitoring metrics.

  max-dropout 2

! Specifies the maximum number of reorders allowed when sampling RTP video-monitoring metrics.

  max-reorder 4

! Enter IP-CBR monitor metric configuration mode

  monitor metric ip-cbr

! Rate for monitoring the metrics (1 packet per sec)

  rate layer3 packet 1

interface interfacename

  service-policy type performance-monitor input PerfMonPolicy

  service-policy type performance-monitor output PerfMonPolicy

In this example configuration:

 is the IP address of the Prime Infrastructure server.

 is the UDP port on which the Prime Infrastructureserver is listening for Medianet data (the default is 9991).

 is the name of the interface (such as GigabitEthernet0/0 or fastethernet 0/1) sending Medianet 

NetFlow data to the specified PrInIP.

For more information on Medianet configuration, see the 

To ensure that Prime Infrastructure can make use of NetFlow data, your network devices must:

Have NetFlow enabled on the interfaces you want to monitor.

Export the NetFlow data to the Prime Infrastructure server and port.

Use the commands below to enable NetFlow on Cisco IOS devices:

interface interfaceName

ip route-cache flow

where 

 is the name of the interface (such as “fastethernet” or “fastethernet0/1”) on which you want to enable 

NetFlow.

Note that you must enable NetFlow on each physical interface for which you want Prime Infrastructure to collect data. These 
will normally be Ethernet or WAN interfaces. This applies to physical interfaces only. You do not need to enable NetFlow on 
VLANs and Tunnels, as they are included automatically whenever you enable NetFlow on a physical interface. 

Use the following commands to see NetFlow working on the device:

show ip flow export

show ip cache flow

show ip cache verbose flow

Once NetFlow is enabled, you can configure the device to export NetFlow data to Prime Infrastructure using these IOS 
configuration-mode commands:

ip flow-export version 5

ip flow-export destination PrInIP PiInPort

ip flow-export source interfaceName

where:

 is the IP address of the Prime Infrastructure server

 is the UDP port on which the Prime Infrastructure server is listening for NetFlow data (the default is 9991)

 is the name of the interface sending NetFlow data to the specified PrInIP. This will cause the source 

interface’s IP address to be sent to Cisco Prime Infrastructure as part of NetFlow export datagrams.