source-lifetime (VPN instance PIM view/PIM view of a public network instance)

Function

The source-lifetime command specifies a timeout period for (S, G) entries.

The undo source-lifetime command restores the default value.

By default, the timeout period of (S, G) entries is 210 seconds.

Format

source-lifetime interval

undo source-lifetime

Parameters

Parameter	Description	Value
interval	Specifies a timeout period for (S, G) entries.	The value is an integer ranging from 60 to 65535, in seconds.

Parameter

Description

Value

interval

Specifies a timeout period for (S, G) entries.

The value is an integer ranging from 60 to 65535, in seconds.

Views

VPN instance PIM view, PIM view of a public network instance

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
pim	write

Usage Guidelines

Usage Scenario

A Router creates a timer for each (S, G) entry. To set a timeout period for those timers, run the source-lifetime command. The Router starts the timer after receiving multicast packets from a multicast source for the first time. Each time the Router receives a multicast packet from the source, the Router resets the timer. If no multicast packets are received before timer times out, the (S, G) entry is considered invalid.

Prerequisites

The multicast routing function has been enabled using the multicast routing-enable command in the public network instance view or VPN instance view.

Configuration Impact

If the source-lifetime command is run more than once, the latest configuration overrides the previous one.

Precautions

The actual aging time of (S, G) entries may be longer than the set timeout period.

Example

# In the public network instance, specify 200 seconds as the timeout period for (S, G) entries.

<HUAWEI> system-view
[~HUAWEI] multicast routing-enable
[*HUAWEI] pim
[*HUAWEI-pim] source-lifetime 200