pim triggered-hello-delay

Function

The pim triggered-hello-delay command sets the maximum delay for triggering Hello messages.

The undo pim triggered-hello-delay command restores the default maximum delay.

By default, the maximum delay for triggering Hello messages is 5 seconds.

Format

pim triggered-hello-delay interval

undo pim triggered-hello-delay

Parameters

Parameter	Description	Value
interval	Specifies the maximum delay for triggering Hello messages.	The value is an integer that ranges from 1 to 5, in seconds.

Views

GE interface view, XGE interface view, MultiGE interface view, 25GE interface view, 40GE interface view, 100GE interface view, Eth-Trunk interface view, GE sub-interface view, XGE sub-interface view, MultiGE sub-interface view, 25GE sub-interface view, 40GE sub-interface view, 100GE sub-interface view, Eth-Trunk sub-interface view, VLANIF interface view, loopback interface view, tunnel interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Conflicts will occur if multiple PIM devices send Hello message at the same time. To avoid such conflicts, when a PIM device detects Hello messages on the network, it waits for a random delay that is smaller than the value configured using this command before sending a Hello message.

Prerequisites

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

Example

# Set the maximum delay for triggering the Hello message to 3 seconds on VLANIF100.

<HUAWEI> system-view
[HUAWEI] multicast routing-enable
[HUAWEI] interface vlanif 100
[HUAWEI-Vlanif100] pim triggered-hello-delay 3

# Set the maximum delay for triggering the Hello message to 3 seconds on GE0/0/1.

<HUAWEI> system-view
[HUAWEI] multicast routing-enable
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo portswitch
[HUAWEI-GigabitEthernet0/0/1] pim triggered-hello-delay 3