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Using IP Multicast Tools
MRM Configuration Task List
IPC-522
Cisco IOS IP Configuration Guide
• Can verify a multicast environment prior to an event—You need not wait for real multicast traffic
to fail in order to find out that a problem exists. You can test the multicast routing environment
before a planned event.
• Easy diagnostics—The error information is easy for the user to understand.
• Scalable—This diagnostic tool works well for many users.
Restrictions
You must make sure the underlying multicast forwarding network being tested has no access lists or
boundaries that deny the MRM data and control traffic. Specifically, consider the following factors:
• MRM test data are User Datagram Protocol (UDP) and Real-Time Transport Protocol (RTP) packets
addressed to the configured multicast group address.
• MRM control traffic between the Test Sender, Test Receiver, and Manager is addressed to the
224.0.1.111 multicast group, which all three components join.
MRM Configuration Task List
To configure and use the MRM feature, perform the required tasks described in the following sections:
• Configuring a Test Sender and Test Receiver (Required)
• Configuring a Manager (Required)
• Conducting an MRM Test (Required)
Configuring a Test Sender and Test Receiver
To configure a Test Receiver on a router or host, use the following commands beginning in global
configuration mode:
To use MRM on test packets instead of actual IP multicast traffic, use the following commands beginning
in global configuration mode to configure a Test Sender on a different router or host from where you
configured the Test Receiver:
Command Purpose
Step 1
Router(config)# interface type number
Specifies an interface.
Step 2
Router(config-if)# ip mrm test-receiver
Configures the interface to be a Test Receiver.
Step 3
Router(config)# ip mrm accept-manager
{access-list}
Optionally, specifies that the Test Receiver can accept status
report requests only from Managers specified by the access list.
Command Purpose
Step 1
Router(config)# interface type number
Specifies an interface.
Step 2
Router(config-if)# ip mrm test-sender
Configures the interface to be a Test Sender.
Step 3
Router(config)# ip mrm accept-manager
{access-list}
Optionally, specifies that the Test Sender can accept status report
requests only from Managers specified by the access list.