ip pim-sparse hello-delay

Syntax

ip pim-sparse hello-delay <DELAY-VALUE>

no ip pim-sparse hello-delay 

Description

Configures the maximum time in seconds before the router actually transmits the initial PIM hello message on the current interface.

The no form of this command removes currently configured value and sets to the default of 5 seconds.

Command context

config-if

config-if-vlan

config-lag-if

Parameters

<DELAY-VALUE>

Specifies the hello-delay in seconds, which is the maximum time before a triggered PIM Hello message is transmitted on this interface. Default: 5 seconds. Range: 0-5.

Authority

Administrators

Usage

  • In cases where a new interface activates connections with multiple routers. If all the connected routers sent hello packets at the same time, the receiving router could become momentarily overloaded.

  • This command randomizes the transmission delay to a time between zero and the hello delay setting. Using zero means no delay. After the router sends the initial hello packet to a newly detected interface, it sends subsequent hello packets according to the current hello interval setting.

Example

Configuring and removing hello-delay interface:

switch(config)# interface vlan40
switch(config-if-vlan)# ip pim-sparse hello-delay 4
switch(config-if-vlan)# no ip pim-sparse hello-delay