display igmp-snooping

Function

The display igmp-snooping command displays the IGMP snooping running parameters.

Format

display igmp-snooping [ vlan [ vlan-id ] ]

Parameters

Parameter	Description	Value
vlan [ vlan-id ]	Displays the IGMP snooping running parameters in a specified VLAN. If this parameter is not specified, the system displays the IGMP running parameters in all VLANs with IGMP snooping configured.	The value is an integer that ranges from 1 to 4094.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

You can use this command to view the IGMP snooping running parameters.

To view the IGMP snooping configuration, run the display igmp-snooping configuration command.

Precautions

This command can display the IGMP snooping running parameters in a VLAN only when at least one interface in the VLAN is in Up state and IGMP snooping enabled in the VLAN. To enable IGMP snooping in a VLAN, run the igmp-snooping enable (VLAN view) command.

Example

# Display the IGMP snooping running parameters.

<HUAWEI> display igmp-snooping
  IGMP Snooping Information for VLAN 3
   IGMP Snooping is Enable
   IGMP Version is Set to default 2
   IGMP Query Interval is Set to default 125s
   IGMP Max Response Interval is Set to default 10s
   IGMP Robustness is Set to default 2
   IGMP Last Member Query Interval is Set to default 1s
   IGMP Router Port Aging Interval is Set to 180s or holdtime in hello
   IGMP Filter Group-Policy is not set
   IGMP Prompt Leave Disable
   IGMP Host-based Prompt Leave Disable
   IGMP Router Alert is Not Required
   IGMP Send Router Alert Enable
   IGMP Proxy Disable
   IGMP Report Suppress Disable
   IGMP Suppress Time is set to default 10 seconds
   IGMP Querier Disable
   IGMP Router Port Learning Enable
   IGMP SSM-Mapping Disable
   IGMP Limit Action Disable
   IGMP Suppress-dynamic-join Disable

Choose Columns...

**Table 1** Description of the **display igmp-snooping** command output
Item	Description
IGMP Snooping Information for VLAN 3	The following information displayed is the IGMP snooping running parameters in VLAN 3.
IGMP Snooping is Enable	IGMP snooping is enabled in the VLAN. By default, IGMP snooping is disabled in a VLAN. IGMP snooping can be enabled in a VLAN using the igmp-snooping enable (VLAN view) command.
IGMP Version is Set to default 2	Version of IGMP messages that can be processed in the VLAN. In this example, the default version 2 is displayed, indicating that both IGMPv1 and IGMPv2 messages can be processed. This parameter is configured using the igmp-snooping version command.
IGMP Query Interval is Set to default 125s	Interval at which IGMP General Query messages are sent. In this example, the default value (125 seconds) is displayed. This parameter is configured using the igmp-snooping query-interval command.
IGMP Max Response Interval is Set to default 10s	Maximum response time for IGMP General Query messages. In this example, the default value (10 seconds) is displayed. This parameter is configured using the igmp-snooping max-response-time command.
IGMP Robustness is Set to default 2	IGMP robustness variable. In this example, the default value 2 is displayed. This parameter is configured using the igmp-snooping robust-count command.
IGMP Last Member Query Interval is Set to default 1s	Interval at which IGMP Group-Specific Query messages are sent. In this example, the default value (1 second) is displayed. This parameter is configured using the igmp-snooping lastmember-queryinterval command.
IGMP Router Port Aging Interval is Set to 180s or holdtime in hello	Aging time of a router port. In this example, the default value (180 seconds or the holdtime value contained in PIM Hello messages) is displayed. This parameter is configured using the igmp-snooping router-aging-time command.
IGMP Filter Group-Policy is not set	Multicast group policy. In this example, the default configuration is displayed. That is, no policy is configured. A multicast group policy is configured using the igmp-snooping group-policy command.
IGMP Prompt Leave Disable	The fast leave function is disabled for interfaces in the VLAN (default configuration). The fast leave function can be enabled using the igmp-snooping prompt-leave command.
IGMP Host-based Prompt Leave Disable	The host-based fast leave function is disabled (default configuration). The host-based fast leave function can be enabled using the igmp-snooping host-based prompt-leave command.
IGMP Router Alert is Not Required	The switch does not require that the IGMP messages received from the VLAN contain the Router-Alert option in the IP header (default configuration). The switch can be configured to discard IGMP messages without the Router-Alert option using the igmp-snooping require-router-alert command.
IGMP Send Router Alert Enable	The switch sends the IGMP messages with the Router-Alert option to the VLAN (default configuration). The switch can be configured to send IGMP messages with the Router-Alert option using the igmp-snooping send-router-alert command.
IGMP Router Port Learning Enable	Router port learning is enabled (default configuration). Router port learning can be enabled using the igmp-snooping router-learning command.
IGMP Proxy Disable	IGMP snooping proxy is disabled (default configuration). IGMP snooping proxy can be enabled using the igmp-snooping proxy command.
IGMP Report Suppress Disable	IGMP message suppression is disabled (default configuration). IGMP message suppression can be enabled using the igmp-snooping report-suppress command.
IGMP Suppress Time is set to default 10 seconds	IGMP message suppression time. In this example, the default value (10 seconds) is displayed. This parameter is configured using the igmp-snooping suppress-time command.
IGMP Querier Disable	IGMP snooping querier is disabled (default configuration). IGMP snooping querier can be enabled using the igmp-snooping querier enable command.
IGMP SSM-Mapping Disable	IGMP snooping SSM mapping is disabled (default configuration). IGMP snooping SSM mapping can be enabled using the igmp-snooping ssm-mapping enable command.
IGMP Limit Action Disable	Layer 2 multicast entry overwriting is enabled (default configuration). Layer 2 multicast entry overwriting can be enabled using the igmp-snooping limit-action command.
IGMP Suppress-dynamic-join Disable	Report and Leave messages received in the VLAN can be forwarded to the upstream multicast device with static multicast groups configured (default configuration). This function can be disabled using the igmp-snooping static-group suppress-dynamic-join command.