Dell Force10 S4820T FTOS Command Reference Guide - Page 1150

www.dell.com | support.dell.com ip pim snooping ex Enable PIM-SM snooping globally on a switch or on a VLAN interface. Syntax Defaults Command Modes Command History Usage Information Related Commands ip pim snooping [enable] To disable PIM-SM snooping enter the no form of the command. Disabled. CONFIGURATION: To configure PIM-SM snooping globally, enter the ip pim snooping enable command in global configuration mode. VLAN INTERFACE: To configure PIM-SM snooping on a VLAN interface, enter the ip pim snooping command in VLAN interface configuration mode. Version 8.3.19.0 Version 8.3.12.0 Version 8.4.1.1 Introduced on S4820T Introduced on the S4810. Introduced on E-Series ExaScale Because PIM-SM snooping is used in a Layer 2 environment, PIM-SM snooping and PIM multicast routing are mutually exclusive. PIM-SM snooping cannot be enabled on a switch/router if PIM-SM or PIM-DM is enabled. If enabled at the global level, PIM-SM snooping is automatically enabled on all VLANs unless the no ip pim snooping command has been entered on a VLAN. If enabled at the VLAN level, PIM-SM snooping requires that you also enter the no shutdown command to enable the interface. PIM-SM snooping is supported with IGMP snooping, and forwards the IGMP report on the port that connects to the PIM DR. It is recommended that you do not enable IGMP snooping on a PIM-SM snooping-enabled VLAN interface unless until it is necessary for VLAN operation. PIM-SM snooping listens to PIM hello and PIM-SM join and prune messages while maintaining the VLAN- and port-specific information in multicast packets that are snooped. To display information about the operation of PIM-SM snooping on a switch, enter the show ip pim summary command. show ip pim snooping tib Display TIB information learned through PIM-SM snooping. 1150 | PIM-Sparse Mode (PIM-SM)