Configuring A Bgp Route Reflector; Configuring A Bgp Confederation; Configuring Bgp Graceful Restart - 3Com MSR 50 Series Configuration Manual

Configuring a BGP Route
Reflector
Configuring a BGP
Confederation
Configuring BGP
Graceful Restart
To configure a BGP route reflector, use the following commands:
To do...
Enter system view
Enter BGP view
Configure the router as a route
reflector and specify a peer/peer
group as its client
Enable route reflection between
clients
Configure the cluster ID of the
route reflector
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.
To configure a BGP confederation, use the following commands:
To do...
Enter system view
Enter BGP view
Configure a BGP
confederation
Enable compatibility with AS
confederation not compliant with RFC
3065
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.
Follow these steps to configure GR on the GR Restarter and the GR Helper:
Use the command...
system-view
bgp as-number
peer { group-name |
ip-address } reflect-client
reflect between-clients
reflector cluster-id
cluster-id
Use the command...
system-view
bgp as-number
Configure a confederation id
confederation ID as-number
Specify sub ASs confederation peer-as
contained in the as-number-list
confederation
confederation
nonstandard

Configuring BGP Graceful Restart

Remarks
-
-
Required
Not configured by default
Optional
Enabled by default
Optional
By default, a route reflector
uses its router ID as the
cluster ID
Remarks
-
-
Required
Not configured by default
Optional
By default, a confederation
complies with RFC 3065.
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