Ip Igmp Snooping - Cisco Catalyst 3750 Command Reference Manual

Chapter 2 Catalyst 3750 Switch Cisco IOS Commands

ip igmp snooping

Use the ip igmp snooping global configuration command on the switch stack or on a standalone switch
to globally enable Internet Group Management Protocol (IGMP) snooping on the switch or to enable it
on a VLAN. Use the command with keywords to enable and configure IGMP snooping on a VLAN
interface. Use the no form of this command to disable IGMP snooping or to reset the parameters to the
default settings.
Syntax Description vlan vlan-id
immediate-leave
mrouter
interface interface-id
learn
cgmp
pim-dvmrp
static ip-address
Note Though visible in the command-line help string, the source-only-learning and tcn keywords are not
supported.
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ip igmp snooping [vlan vlan-id [immediate-leave | mrouter {interface interface-id | learn {cgmp
| pim-dvmrp}} | static ip-address interface interface-id]]
no ip igmp snooping [vlan vlan-id [immediate-leave | mrouter {interface interface-id | learn
{cgmp | pim-dvmrp}} | static ip-address interface interface-id]]
(Optional) When used with other keywords, enable IGMP snooping on a
VLAN interface. Use the no form of this command to disable IGMP
snooping on a VLAN interface. The range is 1 to 4094.
(Optional) Enable IGMP immediate-leave processing on a VLAN interface.
Use the no form of the command to disable the Immediate Leave feature on
the interface.
(Optional) Add a multicast router port or configure the multicast router
learning method. The no form of the command removes the configuration.
(Optional) With mrouter, specify the next-hop interface to the multicast
router.
With static, specify the interface of the member port. It can be one of these
values:
•
•
•
(Optional) With mrouter, specify the multicast router learning method.
Set the switch to learn multicast router ports by snooping on Cisco Group
Management Protocol (CGMP) packets.
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.
(Optional) Add a Layer 2 port as a member of a multicast group with the
specified group IP address.
fastethernet interface number—a Fast Ethernet 802.3 interface.
gigabitethernet interface number—a Gigabit Ethernet 802.3z interface.
port-channel interface number—a channel interface. The range is 0 to
48.
Catalyst 3750 Switch Command Reference
ip igmp snooping
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