Configuring A Bsr Administrative Domain; Establishing The Configuration Task - Huawei Quidway s3700 series Configuration Manual

Quidway S3700 Series Ethernet Switches
Configuration Guide - Multicast

7.6 Configuring a BSR Administrative Domain

A PIM-SM network can be divided into multiple BSR administrative domains and a global
domain. This effectively reduces the load of a single BSR, and provides a special service for
specific multicast groups.

7.6.1 Establishing the Configuration Task

After dynamic RP and basic PIM-SM functions are configured, you can configure BSR
administrative domains as required. Each BSR administrative domain maintains a BSR and
provides services for the multicast groups within a specific address range. Multicast groups that
do not belong to any BSR administrative domain are served by the global domain.
Applicable Environment
This section describes how to configure a BSR administrative domain in the ASM model through
commands.
In the traditional mode, a PIM-SM network maintains only one BSR and all multicast groups in
the network are in the administrative range of the BSR. To better manage the domains, the PIM-
SM network is divided into multiple BSR administrative domains. Each BSR administrative
domain maintains only one BSR that serves specified multicast groups. BSR administrative
domains are geographically isolated. Multicast packets of a BSR administrative domain cannot
pass the border of the domain.
The address of a multicast group served by a BSR administrative domain is valid only in the
BSR administrative domain. The addresses of multicast groups served by different BSR
administrative domains can be identical and these addresses are equal to private multicast group
addresses.
Multicast groups that do not belong to any BSR administrative domain are served by the global
domain. Global domain maintains only one BSR that serves the remaining multicast groups.
Dividing a PIM-SM network into multiple BSR administrative domains and a global domain
effectively reduces the load of a single BSR, and provides a special service for specific multicast
groups.
The switch can work normally under the control of default values. The S3700 allows users to
adjust the parameters.
Pre-configuration Tasks
Before configuring a BSR administrative domain, complete the following tasks:
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Issue 01 (2011-10-26)
NOTE
Only the S3700HI supports BSR administrative domains.
NOTE
Default values are recommended.
Configuring a unicast routing protocol
Configuring Basic PIM-SM Functions
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