robust-count (IGMP view)

Function

The robust-count command sets the robustness variable of an IGMP querier globally.

The undo robust-count command restores the default configuration.

Format

robust-count robust-value

undo robust-count

Parameters

Parameter	Description	Value
robust-value	Specifies the robust variable of IGMP. It sets the number of times for retransmitting messages to make up for the packet loss.	The value is an integer that ranges from 2 to 5.

Views

IGMP view

Default Level

2: Configuration level

Usage Guidelines

By default, the robustness variable of the IGMP querier is 2.

The robustness variable defines the following values:

Number of times for sending general query messages when the querier starts
Number of times for sending group-specific query messages when the querier receives a Leave message

This command functions in the same way as the igmp robust-count command used in the interface view, except for the function range. The configuration in the IGMP view is globally valid in the instance, whereas the configuration in the interface view is valid only for the current interface. The system prefers the configuration in the interface view. The configuration in the IGMP view is used only when the configuration in the interface view is not done.

Example

# In the IGMP view, set the robustness variable of the querier to 3.

<sysname> system-view
[sysname] igmp
[sysname-igmp] robust-count 3