proxy source-lifetime

Function

The proxy source-lifetime command sets the timeout period for an (S, G) entry that an IGMP proxy-capable switch generates.

The undo proxy source-lifetime command restores the default configuration.

By default, the timeout period of an (S, G) entry that an IGMP proxy-capable switch generates is 210 seconds.

Format

proxy source-lifetime interval

undo proxy source-lifetime

Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support this command.

Parameters

Parameter	Description	Value
interval	Specifies the timeout period of an (S, G) entry.	The value is an integer that ranges from 60 to 65535, in seconds. The default value is recommended for general use.

Views

IGMP view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

An IGMP proxy-capable switch starts a timer for each (S, G) entry and records the time when a multicast source S sends multicast packets. The proxy source-lifetime command sets the timeout period for (S, G) entries on an IGMP proxy-capable switch. An IGMP proxy interface starts a timer when it receives the first multicast packet from a multicast source and resets the timer every time it receives a multicast packet from the multicast source. If the interface does not receive any multicast packet from the multicast source within the timeout period, it considers the (S, G) entry invalid.

Prerequisites

IP multicast routing has been enabled using the multicast routing-enable command.

Example

#Set the timeout period for (S, G) entries to 200s.

<HUAWEI> system-view
[HUAWEI] multicast routing-enable
[HUAWEI] igmp
[HUAWEI-igmp] proxy source-lifetime 200

# In VPN instance mvpn, set the timeout period for (S, G) entries to 200s.