HP Cisco Catalyst Blade Switch 3020 Cisco Catalyst Blade Switch 3020 for HP Co - Page 161
ip igmp snooping vlan mrouter
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Chapter 2 Cisco Catalyst Blade Switch 3020 for HP Cisco IOS Commands ip igmp snooping vlan mrouter ip igmp snooping vlan mrouter Use the ip igmp snooping mrouter global configuration command to add a multicast router port or to configure the multicast learning method. Use the no form of this command to return to the default settings. ip igmp snooping vlan vlan-id mrouter {interface interface-id | learn {cgmp | pim-dvmrp}} no ip igmp snooping vlan vlan-id mrouter {interface interface-id | learn {cgmp | pim-dvmrp}} Syntax Description vlan-id interface interface-id learn {cgmp | pim-dvmrp} Enable IGMP snooping, and add the port in the specified VLAN as the multicast router port. The range is 1 to 1001 and 1006 to 4094. Specify the next-hop interface to the multicast router. The keywords have these meanings: • gigabitethernet interface number-a Gigabit Ethernet IEEE 802.3z interface. • port-channel interface number-a channel interface. The range is 0 to 48. Specify the multicast router learning method. The keywords have these meanings: • cgmp-Set the switch to learn multicast router ports by snooping on Cisco Group Management Protocol (CGMP) packets. • pim-dvmrp-Set the switch to learn multicast router ports by snooping on IGMP queries and Protocol-Independent Multicast-Distance Vector Multicast Routing Protocol (PIM-DVMRP) packets. Defaults By default, there are no multicast router ports. The default learning method is pim-dvmrp-to snoop IGMP queries and PIM-DVMRP packets. Command Modes Global configuration Command History Release 12.2(25)SEF Modification This command was introduced. Usage Guidelines VLAN IDs 1002 to 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in IGMP snooping. The CGMP learn method is useful for reducing control traffic. The configuration is saved in NVRAM. OL-8916-01 Cisco Catalyst Blade Switch 3020 for HP Command Reference 2-133