show ip igmp snooping

Display the status of Internet Group Management Protocol (IGMP) snoop.

Syntax

show ip igmp snooping
show ip igmp snooping vrf WORD<1-16>
show ip igmp snooping vrfids WORD<0-512>

Command Parameters

vrf WORD<1-16>: Specifies a VRF by name.
vrfids <0-512>: Specifies a VRF by ID.

Default

None

Command Mode

Privileged EXEC

Usage Guidelines

This command is not supported on a node configured as the DvR Leaf within a DvR domain.

Command Output

The show ip igmp snooping command displays the following information:


Output field	Description
IFINDEX	Indicates the interface index number.
SNOOP ENABLE	Indicates the status of IGMP snoop.
PROXY SNOOP ENABLE	Indicates the status of IGMP proxy snoop.
SSM SNOOP ENABLE	Indicates the status of IGMP Source Specific Multicast (SSM) snoop.
STATIC MROUTER PORTS	Indicates the set of ports in this VLAN that provide connectivity to an IP multicast router.
ACTIVE MROUTER PORTS	Indicates the active ports.
MROUTER EXPIRATION TIME	Indicates the multicast querier router aging timeout in seconds.
SNOOP QUERIER ENABLE	Indicates if the IGMP Layer 2 Querier feature is enabled.
SNOOP QUERIER ADDRESS	Indicates the IP address of the IGMP Layer 2 querier.
DYNAMIC DOWNGRADE VERSION	Indicates if the switch downgrades the version of IGMP to handle older query messages.
COMPATIBILITY MODE	Indicates if IGMPv3 is compatible with IGMPv2

Example

The following example displays the status of IGMP snoop.

Switch:1#show ip igmp snooping

================================================================================
                          Igmp Snooping - GlobalRouter
================================================================================
IFINDEX SNOOP   PROXY   SSM     STATIC           ACTIVE           MROUTER
        ENABLE  SNOOP   SNOOP   MROUTER          MROUTER          EXPIRATION
                ENABLE  ENABLE  PORTS            PORTS            TIME
--------------------------------------------------------------------------------
V2      false   false   false                                     0
V3      false   false   false                                     0
V4      true    false   false                                     0
V200    false   false   false                                     0

IFINDEX SNOOP   SNOOP           DYNAMIC   COMPATIBILITY
        QUERIER QUERIER         DOWNGRADE MODE
        ENABLE  ADDRESS         VERSION
--------------------------------------------------------------------------------
V2      false   0.0.0.0         enable    disable
V3      false   0.0.0.0         enable    disable
V4      true    192.0.2.1       enable    disable
V200    false   0.0.0.0         enable    disable

4 out of 4 entries displayed