igmp-snooping report-suppress

Function

The igmp-snooping report-suppress command enables the suppression of IGMP Report messages.

The undo igmp-snooping report-suppress command disables the suppression of IGMP Report messages.

By default, the suppression for IGMP Report messages is disabled.

Format

igmp-snooping report-suppress

undo igmp-snooping report-suppress

Parameters

None

Views

VLAN view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
l2mc	write

Usage Guidelines

Usage Scenario

After the igmp-snooping report-suppress command is run, the device is configured to work in host mode. Assume that the robustness variable is N, the device sends N Report messages and N Leave messages to an upstream router for the first time. When the device periodically responds to IGMP Query messages sent by the upstream router, the device needs to send only one IGMP Report message to the upstream router to reduce traffic on the network side, regardless of the number of interfaces in the multicast group. The default robustness variable is 2. You can run the igmp snooping robust command to change a robustness variable.

Precautions

The configuration in the VLAN view cannot succeed in the following cases:

The VLAN is bound to a VSI.
The pim sm command is used to configure PIM-SM on a VLANIF interface in a VLAN.
The igmp-snooping proxyigmp snooping proxy command is used to configure IGMP snooping proxy.
After IGMP Report message suppression is enabled using the igmp-snooping report-suppress command, the device functions as a proxy for user-side protocol packets by default. When the device forwards Report and Leave packets to the upstream device, the source IP address of the protocol packets is 192.168.0.1.

Example

# Enable the suppression of IGMP Report messages in the view of VLAN 10.

<HUAWEI> system-view
[~HUAWEI] igmp-snooping enable
[*HUAWEI] vlan 10
[*HUAWEI-vlan10] igmp-snooping report-suppress