3Com Switch 8800 Advanced Software V5 Configuration Guide

446 CHAPTER 35: BGP CONFIGURATION
Configuring a BGP Route
Reflector
To configure a BGP route reflector, use the following commands:
c
CAUTION:
■ In general, it is not required to make clients of a route reflector fully meshed.
The route reflector forwards routing information between clients. If clients are
fully meshed, you can disable route reflection between clients to reduce
routing costs.
■ In general, a cluster has only one route reflector, and the router ID is used to
identify the cluster. You can configure multiple route reflectors to improve
network stability. In this case, you need to specify the same cluster ID for these
route reflectors to avoid routing loops.
Configuring a BGP
Confederation
To configure a BGP confederation, use the following commands:
c
CAUTION:
■ A confederation contains 32 sub ASs at most. The as-number of a sub AS takes
effect in the confederation only.
■ If routers not compliant with RFC 3065 exist in the confederation, you can use
the confederation nonstandard command to make the local router
compatible with these routers.
To do... Use the command... Remarks
Enter system view system-view -
Enter BGP view bgp as-number -
Configure the router as a route
reflector and specify a peer/peer
group as its client
peer { group-name |
ip-address }
reflect-client
Required
Not configured by default
Enable route reflection between
clients
reflect
between-clients
Optional
Enabled by default
Configure the cluster ID of the
route reflector
reflector cluster-id
cluster-id
Optional
By default, a route reflector
uses its router ID as the cluster
ID
To do... Use the command... Remarks
Enter system view system-view -
Enter BGP view bgp as-number -
Configure a BGP
confederation
Configure a
confederation ID
confederation id
as-number
Required
Not configured by default
Specify sub ASs
contained in the
confederation
confederation
peer-as as-number-list
Enable compatibility with AS
confederation not compliant with
RFC 3065
confederation
nonstandard
Optional
By default, a confederation
complies with RFC 3065.