Reference Guide

ip multicast-limit
To limit the number of multicast entries on the system, use this feature.
S4820T
Syntax
ip multicast-limit limit
Parameters
limit Enter the desired maximum number of multicast entries on the
system. The S-Series range is from 1 to 2000.
Defaults The S-Series default is 400.
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced on the C-Series.
Version 7.6.1.0 Introduced on the E-Series.
Usage
Information
This feature allows you to limit the number of multicast entries on the system. This number is
the total of all the multicast entries on all line cards in the system. On each line card, the
multicast module only installs the maximum number of entries, depending on the configured
CAM profile.
To store multicast routes, use the IN-L3-McastFib CAM partition. It is a separate hardware limit
that exists per port-pipe. This hardware space limitation can supersede any software-
configured limit. The opposite is also true, the CAM partition might not be exhausted at the time
the system-wide route limit set by the ip multicast-limit command is reached.
Related
Commands
show ip igmp groups — shows the IGMP groups.
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