display igmp-snooping

Function

The display igmp-snooping command displays all parameters of IGMP snooping running. These parameters include default and non-default parameters.

Format

display igmp-snooping { vlan vlan-id | vsi vsi-name | bridge-domain bd-id } [ configuration ]

display igmp-snooping vlan [ configuration ]

display igmp-snooping vsi [ configuration ]

display igmp-snooping [ configuration ]

display igmp-snooping bridge-domain [ configuration ]

Parameters

Parameter	Description	Value
vlan vlan-id	Displays IGMP snooping configurations in a specified VLAN.	The value is an integer ranging from 1 to 4094.
vsi vsi-name	Displays IGMP snooping configurations in a specified VSI.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.
bridge-domain bd-id	Displays IGMP snooping configurations in a specified BD.	The value is an integer ranging from 1 to 16777215.
configuration	Display non-default IGMP snooping configurations in a specified VLAN/VSI/BD.	-

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
l2mc	read

Usage Guidelines

Usage Scenario

To locate a fault that occurs during multicast service transmission, run the display igmp-snooping vsi command.

Prerequisites

IGMP snooping has been enabled globally and in the corresponding instance.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display all parameters of IGMP snooping.

<HUAWEI> display igmp-snooping
  IGMP Snooping Information for VLAN 81
     IGMP Snooping is Enabled
     IGMP Version is Set to default 2
     IGMP Query Interval is Set to default 60
     IGMP Max Response Interval is Set to default 10
     IGMP Robustness is Set to default 2
     IGMP Last Member Query Interval is Set to default 1
     IGMP Router Port Aging Interval is Set to 180s or holdtime in hello
     IGMP Filter Group-Policy is Set to default : Permit All
     IGMP Filter IP-Policy is Set to default : Permit All
     IGMP Prompt Leave Disable
     IGMP Router Alert is Not Required
     IGMP Send Router Alert Enable
     IGMP Router Port Learning Enable
     IGMP Proxy Disable
     IGMP Proxy Router Protocol Action is Set to default: Termination All
     IGMP Report Suppress Disable
     IGMP Suppress Time is set to default 10 seconds
     IGMP Querier Disable
     IGMP Snooping explicit-tracking disable                                   
     IGMP Snooping querier-election disable                                    
     IGMP ASM-SSM                                                             
     IGMP SSM-Mapping Disable
     IGMP Suppress-dynamic-join Disable

**Table 1** Description of the **display igmp-snooping** command output
Item	Description
IGMP Snooping is Enabled	IGMP Snooping has been enabled in the VLAN/VSI/BD.
IGMP Version is Set to default 2	The version of IGMP messages supported by the VLAN/VSI/BD is the default version. This means that both IGMPv1 messages and IGMPv2 messages can be processed.
IGMP Query Interval is Set to default 60	IGMP general query messages are sent at a default interval (60s) in the VLAN/VSI/BD.
IGMP Max Response Interval is Set to default 10	The maximum time taken by a downstream host to respond to the querier is set to the default value (10s) in the VLAN/VSI/BD.
IGMP Robustness is Set to default 2	The number of times the querier sends group-specific query messages is set to the default value (2) in the VLAN/VSI/BD.
IGMP Last Member Query Interval is Set to default 1	Group-specific query messages are sent at a default interval (1s) in the VLAN/VSI/BD.
IGMP Router Port Aging Interval is Set to 180s or holdtime in hello	The aging time of a router port is 180s or equals holdtime contained in a PIM Hello packet in the VLAN/VSI/BD.
IGMP Filter Group-Policy is Set to default : Permit All	The default multicast group policy is used in the VLAN/VSI/BD. This means hosts in the VLAN/VSI/BD can join all multicast groups.
IGMP Filter IP-Policy is Set to default : Permit All	The default IP policy is used in the VLAN/VSI/BD.
IGMP Prompt Leave Disable	Prompt leave is disabled for interfaces in the VLAN/VSI/BD.
IGMP Router Alert is Not Required	IGMP messages received by a device from the VLAN/VSI/BD do not need to carry the Router Alert option in the IP header.
IGMP Send Router Alert Enable	IGMP messages sent by a device to the VLAN/VSI/BD must carry the Router Alert option in the IP header.
IGMP Router Port Learning Enable	Router port learning has been enabled in the VLAN/VSI/BD.
IGMP Proxy Disable	IGMP proxy is disabled in the VLAN/VSI/BD.
IGMP Proxy Router Protocol Action is Set to default: Termination All	IGMP proxy-enabled devices in the VLAN/VSI/BD do not transparently transmit received IGMP messages. This means that these IGMP proxy-enabled devices terminate received Report, Leave, group-specific query, and source/group-specific query messages.
IGMP Report Suppress Disable	IGMP Report message suppression is disabled in the VLAN/VSI/BD.
IGMP Suppress Time is set to default 10 seconds	The IGMP Report message suppression interval is set to 10s in the VLAN/VSI/BD.
IGMP Querier Disable	The querier function is disabled in the VLAN/VSI/BD.
IGMP Snooping explicit-tracking disable	The member tracking function is disabled in the VLAN/VSI/BD.
IGMP Snooping querier-election disable	The querier election function is disabled in the VLAN/VSI/BD.
IGMP ASM-SSM	The multicast model is ASM-SSM in the VLAN/VSI/BD. Both ASM and SSM packets are supported.
IGMP SSM-Mapping Disable	SSM mapping is disabled in the VLAN/VSI/BD.