c-bsr priority(VPN instance PIM view/PIM view of a public network instance)

Function

The c-bsr priority command globally sets a priority value for candidate-bootstrap routers (C-BSRs).

The undo c-bsr priority command restores the setting.

By default, the global priority value of C-BSRs is 0.

Format

c-bsr priority priority

undo c-bsr priority

Parameters

Parameter	Description	Value
priority	Specifies a global priority value for C-BSRs. A larger value indicates a higher C-BSR priority.	The value is an integer ranging from 0 to 255.

Parameter

Description

Value

priority

Specifies a global priority value for C-BSRs. A larger value indicates a higher C-BSR priority.

The value is an integer ranging from 0 to 255.

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

If multiple C-BSRs are deployed in a PIM-SM domain, a BSR is elected based on the following rules:

The C-BSR with the highest priority wins.
If the C-BSRs have the same priority, the C-BSR with the largest IP address wins.
To have a C-BSR be elected as the BSR, run the c-bsr priority command to set a larger priority value for the C-BSR than those of the other C-BSRs.

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 c-bsr priority command is run more than once, the latest configuration overrides the previous one.

Example

# In the public network instance, specify 5 as the global priority value for C-BSRs.

<HUAWEI> system-view
[~HUAWEI] multicast routing-enable
[*HUAWEI] pim
[*HUAWEI-pim] c-bsr priority 5