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Preserving Multicast Performance by Disabling Response to the ping Utility

 

The ping utility uses ICMP Echo messages to verify connectivity to any device with an IP address. However, in the case of multicast applications, a single ping sent to a multicast address can degrade the performance of routers because the stream of packets is replicated multiple times.

You can disable the router's response to ping (ICMP Echo) packets sent to multicast addresses. The system responds normally to unicast ping packets.

To disable the router's response to ping packets sent to multicast addresses:

  1. Include the no-multicast-echo statement:
  2. Verify the configuration by checking the echo drops with broadcast or multicast destination address field in the output of the show system statistics icmp command.