Configuring a PIM hello policy

This feature enables the switch to filter PIM hello messages by using an ACL that specifies the packet source addresses. It is used to guard against PIM message attacks and to establish correct PIM neighboring relationships.

To configure a PIM hello policy:

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enter interface view.

interface interface-type interface-number

N/A

3. Configure a PIM hello policy.

pim neighbor-policy acl-number

By default, no PIM hello policy exists.

If a PIM neighbor's hello messages cannot pass the policy, the neighbor is automatically removed when its maximum number of hello attempts is reached.