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Cisco IOS Cookbook, 2nd Edition by Ian Brown, Kevin Dooley

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Using SAA

Problem

You want to configure the routers to automatically poll one another to collect performance statistics.

Solution

Cisco supplies a feature called the Service Assurance Agent (SAA) in IOS Version 12.0(5)T and higher, which allows the routers to automatically poll one another to collect end-to-end performance statistics:

Router1#configure terminal 
Enter configuration commands, one per line.  End with CNTL/Z.
Router1(config)#rtr responder
Router1(config)#rtr 10
Router1(config-rtr)#type echo protocol ipIcmpEcho 10.1.2.3
Router1(config-rtr)#tag ECHO_TEST
Router1(config-rtr)#threshold 1000
Router1(config-rtr)#frequency 300
Router1(config-rtr)#exit
Router1(config)#rtr schedule 10 life 2147483647 start-time now 
Router1(config)#rtr 20
Router1(config-rtr)#type jitter dest-ipaddr 10.1.2.3 dest-port 99 num-packets 100
Router1(config-rtr)#tag JITTER_TEST
Router1(config-rtr)#frequency 300
Router1(config-rtr)#exit
Router1(config)#rtr schedule 20 life 100000 start-time now ageout 3600
Router1(config)#exit
Router1#

The target router, which is specified as the destination in both of these tests, 10.1.2.3, must be configured to respond to SAA tests as follows:

Router2#configure terminal 
Enter configuration commands, one per line.  End with CNTL/Z.
Router2(config)#rtr responder
Router2(config)#exit
Router2#

Discussion

The SAA feature includes replaces the earlier Round Trip Reporter (RTR) and Route Trip Time Monitor (RTTMON) facilities, which were available in IOS Version 11.3, and uses the ...

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