CLI Guide

ip multicast-limit
To limit the number of multicast entries on the system, use this feature.
Syntax
ip multicast-limit limit
Parameters
limit Enter the desired maximum number of multicast entries on the system. The range is from
1 to 50000.
Defaults 15000 routes.
Command Modes CONFIGURATION
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
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 congured CAM prole.
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-congured 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.
ip multicast-routing
Enable IP multicast forwarding.
Syntax
ip multicast-routing
To disable multicast forwarding, use the no ip multicast-routing command.
Defaults Disabled.
Command Modes CONFIGURATION
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
After you enable multicast, you can enable IGMP and PIM on an interface. In INTERFACE mode, enter the ip pim
sparse-mode command to enable IGMP and PIM on the interface.
Related Commands ip pim sparse-mode — enables IGMP and PIM on an interface.
Multicast 879