hello-interval (PIM)

Configures the frequency with which the device sends PIM hello messages to its neighbors.

Syntax

hello-interval seconds
no hello-interval

Command Default

By default, the hello-interval is 30 seconds.

Parameters

seconds
Specifies the hello interval in seconds. The range is 10 through 3600 seconds.

Modes

PIM Router configuration mode

Usage Guidelines

Use the no hello-interval form of this command to reset the default interval.

Devices use PIM hello messages to advertise themselves as PIM routing devices to their neighbors. At the beginning of an interval, a device sends a hello message, and the timer is reset. The device drops any neighbor that doesn't respond to the message in a period that is 3.5 times the hello interval.

Examples

The following example configures the IPv4 PIM hello interval.

device(config)# router pim
device(config-pim-router)# hello-interval 50

The following example configures the IPv6 PIM hello interval.

device(config)# ipv6 router pim
device(config-ipv6-router-pim-vrf-default-vrf)# hello-interval 50