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NE40E V800R010C10SPC500 Configuration Guide - IP Multicast 01

This is NE40E V800R010C10SPC500 Configuration Guide - IP Multicast
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Configuring a BSR Boundary

Configuring a BSR Boundary

Before configuring PIM inter-domain multicast, configure BootStrap router (BSR) boundaries to divide a multicast network into different PIM-SM domains. Each BSR serves only the local PIM-SM domain, and routers outside the BSR boundary of a PIM-SM domain do not take part in BSR message forwarding in this PIM-SM domain.

Usage Scenario

After a BSR boundary is configured on the interface of an edge router in a PIM-SM domain, Bootstrap messages cannot pass through this interface. The interfaces configured with BSR boundaries divide the network into different PIM-SM domains.

BSR boundaries can also be used to isolate PIM-SM domains from the Internet.

Pre-configuration Tasks

Before configuring a BSR boundary, complete the following tasks:

  • Configure a unicast routing protocol to ensure that unicast routes are reachable.

  • Enable multicast routing on all routers and enable PIM-SM on all interfaces.


  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run pim bsr-boundary [ incoming ]

    A BSR boundary is configured. BSR messages cannot pass through the BSR boundary.

    If incoming is specified, the local PIM-SM domain can send BSR messages to all other PIM-SM domains but cannot receive BSR messages from other PIM-SM domains.

  4. Run commit

    The configuration is committed.

Checking the Configurations

Run the display pim [ vpn-instance vpn-instance-name | all-instance ] bsr-info command to check BSR information in a PIM-SM domain.

Follow-up Procedure

  1. Configure a BSR RP for each PIM-SM domain.

  2. Set up MSDP peer relationships between RPs in PIM-SM domains and configure PIM-SM inter-domain multicast.

Updated: 2019-01-03

Document ID: EDOC1100055017

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