Cisco Systems 78-11741-02 manual Monitoring IP Multicast Routing, Monitoring and Maintaining MRM

Using IP Multicast Tools

Monitoring IP Multicast Routing

When the test begins, the Manager sends a unicast control packet to the Test Sender and Test Receiver, and then the Manager starts sending beacons. The Test Sender and Test Receiver send acknowledgments to the Manager and begin sending or receiving test packets. If an error occurs, the Test Receiver sends an error report to the Manager, which immediately displays the report.

You cannot change the Manager parameters while the test is in progress.

Monitoring IP Multicast Routing

To monitor IP multicast routers, packets, and paths, use the following commands in EXEC mode :

Command	Purpose
Router# mrinfo [host-name host-address]	Queries a multicast router about which neighboring multicast
[source-address interface]	routers are peering with it.
Router# mstat source [destination] [group]	Displays IP multicast packet rate and loss information.
Router# mtrace {source-name source-address}	Traces the path from a source to a destination branch for a
[destination-name destination-address][group-name	multicast distribution tree for a given group.
group-address]

Monitoring and Maintaining MRM

To monitor and maintain MRM, use the following commands in EXEC mode:

Command		Purpose
Router# clear ip mrm status-report [ip-address]		Clears the status report cache buffer.
Router# show ip mrm interface [type number]		Displays Test Sender and Test Receiver information.
Router#	show ip mrm manager [test-name]	Displays MRM test information.
Router#	show ip mrm status-report [ip-address]	Displays the status reports (errors) in the circular cache buffer.

Cisco IOS IP Configuration Guide

IPC-525