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display default-parameter igmp

Function

The display default-parameter igmp command displays default IGMP configurations.

Format

display default-parameter igmp

Parameters

None

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

This command displays default IGMP parameter settings even if IGMP parameters have been modified. Therefore, you can use this command to check which parameters have been modified.

Example

# Display default IGMP configurations.

<HUAWEI> display default-parameter igmp
  IGMP View Default Configurations:
  ---------------------------------
  Lastmember-queryinterval: 1 s
  Max-response-time: 10 s
  Require-router-alert: disabled
  Robust-count: 2
  Send-router-alert: enabled
  Ssm-mapping: disabled
  Timer other-querier-present: 125 s
  Timer query: 60 s

  Interface View Default Configurations:
  --------------------------------------
  Group-policy: disabled
  Lastmember-queryinterval: 1 s
  Lastmember-query time: 2 s
  Max-response-time: 10 s
  Other-querier-present-timer-expiry: off
  Prompt-leave: disabled
  Require-router-alert: disabled
  Robust-count: 2
  Send-router-alert: enabled
  Ssm-mapping: disabled
  Startup-query-timer-expiry: off
  Static-group: disabled
  Timer other-querier-present: 125 s
  Timer query: 60 s
  Version: 2
  Ip-source-policy: disabled
Choose Columns...
Table 1 Description of the display default-parameter igmp command output

Item

Description

IGMP View Default Configurations

Default configurations in the IGMP view. The default configurations take effect globally.

Lastmember-queryinterval

Interval for sending IGMP Group-Specific Query messages. This parameter is configured using the lastmember-queryinterval (IGMP view) command in the IGMP view or the igmp lastmember-queryinterval command in the interface view.

Max-response-time

Maximum response time for IGMP Query messages. This parameter is configured using the max-response-time (IGMP view) command in the IGMP view or the igmp max-response-time command in the interface view.

Require-router-alert

Whether the device checks for the Router-Alert option in the received IGMP message. This parameter is configured using the require-router-alert (IGMP view) command in the IGMP view or the igmp require-router-alert command in the interface view.

Robust-count

Robustness variable of an IGMP querier. This parameter is configured using the robust-count (IGMP view) command in the IGMP view or the igmp robust-count command in the interface view.

Send-router-alert

Whether the IGMP messages sent from the device carry the Router-Alert option. This parameter is configured using the send-router-alert (IGMP view) command in the IGMP view or the igmp send-router-alert command.

Ssm-mapping

Status of the SSM mapping function. The value can be:
  • enabled: This function is enabled.
  • disabled: This function is disabled.

SSM mapping can be configured using the igmp ssm-mapping enable command.

Timer other-querier-present

Length of the other querier present timer. This parameter is configured using the timer other-querier-present (IGMP view) command in the IGMP view or the igmp timer other-querier-present command in the interface view.

Timer query

Interval for sending IGMP General Query messages. This parameter is configured using the timer query (IGMP view) command in the IGMP view or the igmp timer query command in the interface view.

Interface View Default Configurations

Default configurations in the interface view. The configurations take effect only for IGMP-enabled interfaces.

Group-policy

Whether a multicast group policy is configured. The value can be:
  • enabled: A multicast group policy is configured.
  • disabled: No multicast group policy is configured.

A multicast group policy is configured using the igmp group-policy command.

Lastmember-query time

Last member query time, calculated using the following formula:

Last member query time = Last member query interval x Robustness variable

The last member query time is not defined in IGMPv1.

Other-querier-present-timer-expiry

Status of the other querier present timer:
  • off: The interface considers itself a querier and no other queriers exist.
  • on: The interface no longer considers itself a querier and another querier exists.

Prompt-leave

Status of the fast leave function. The value can be:
  • enabled: This function is enabled.
  • disabled: This function is disabled.

This function is configured using the igmp prompt-leave command.

Startup-query-timer-expiry

Startup query interval of the querier. The interface sends Query messages at this interval when it starts to function as a querier. The value is expressed in seconds and is 1/4 of the query interval (Timer query).

The value off indicates that the interface has not started to send Query messages as a querier. The startup query timer is enabled only when the interface starts as a querier.

Static-group

Whether static multicast groups are configured. The value can be:
  • enabled: Static multicast groups are configured.
  • disabled: No static multicast groups are configured.

A static multicast group is configured using the igmp static-group command.

Version

IGMP version number. IGMP has three versions: IGMPv1, IGMPv2, and IGMPv3, which is configured using the igmp version command.

Ip-source-policy

Status of IGMP Report/Leave message filtering based on host addresses. The value can be:
  • enabled: This function is enabled.
  • disabled: This function is disabled.

This function is configured using the igmp ip-source-policy command.

Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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