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Chapter 9 - Multicast Support Commands

Cisco Multicast Routing & Switching
William R. Parkhurst
  Copyright © 1999 The McGraw-Hill Companies

IP Multicast Rate Limiting
The amount of bandwidth that multicast traffic uses on a link can be controlled using the interface command.
ip multicast rate-limit in | out [video] | [whiteboard] [group-list access-list]
[source-list access-list] [kbps]
in
Only packets at the rate of kbps or slower are accepted on the interface.
out
Only a maximum of kbps is transmitted on the interface.
video
Optional. Rate-limiting is performed based on the UDP port number used by video traffic, which is identified by consulting the SDR cache.
whiteboard
Optional. Rate limiting is performed based on the UDP port number used by whiteboard traffic, which is identified by consulting the SDR cache.
group-list
access-list
Optional. An access list that is used to determine which multicast groups will be constrained by the rate limit.
source-list
access-list
Optional. An access list that is used to determine which senders will be constrained by the rate limit.
Kbps
Rate limit in kilobits per second. Packets sent at a rate greater than kbps are discarded. If no value is given, then the default rate is 0 kilobits per seconds. In this case, no multicast traffic is permitted.
This command requires that ip sdr listen be enabled so port numbers can be obtained from the SDR cache. If SDR is not enabled, then no limiting occurs.

 


 
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