Dell PowerSwitch S4820T FTOS 8.3.19.0 Command Line Reference Guide for the S48 - Page 1053
ip multicast-routing
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Command History Usage Information Related Commands Version 8.3.19.0 Version 8.3.7.0 Version 7.8.1.0 Version 7.6.1.0 Introduced on S4820T Introduced on S4810 Introduced on C-Series Introduced on E-Series This features allows the user to limit the number of multicast entries on the system. This number is the sum total of all the multicast entries on all line cards in the system. On each line card, the multicast module will only install the maximum possible number of entries, depending on the configured CAM profile. The IN-L3-McastFib CAM partition is used to store multicast routes and is a separate hardware limit that is exists per port-pipe. Any software-configured limit might be superseded by this hardware space limitation. 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 is reached. show ip igmp groups View the IGMP groups. ip multicast-routing c e s Enable IP multicast forwarding. Syntax Defaults Command Modes Command History Usage Information Related Commands ip multicast-routing To disable multicast forwarding, enter no ip multicast-routing. Disabled CONFIGURATION Version 8.3.19.0 Introduced on S4820T Version 8.3.7.0 Introduced on S4810 E-Series legacy command You must enter this command to enable multicast on the E-Series. After you enable multicast, you can enable IGMP and PIM on an interface. In the INTERFACE mode, enter the ip pim sparse-mode command to enable IGMP and PIM on the interface. ip pim sparse-mode Enable IGMP and PIM on an interface. Multicast | 1053