HP 4500G PWR 24-Port, Руководство по настройке

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To do… Use the command… Remarks
peer/peer group Advertise the
extended community
attribute to a peer/peer
group
peer
{
group-name | ip-address
}
advertise-ext-community
by default.
Apply a routing policy to routes advertised
to a peer/peer group
peer
{
group-name
|
ip-address
}
route-policy route-policy-name
export
Required
Not configured
by default.
Configuring a BGP Route Reflector
If an AS has many BGP routers, you can configure them as a cluster and configure one of them as a
route reflector and others as clients to reduce iBGP connections.
To enhance network reliability and prevent single point failures, you can specify multiple route reflectors
for a cluster. The route reflectors in the cluster must have the same cluster ID specified to avoid routing
loops.
Follow these steps to configure a BGP route reflector:
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.
z
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.
z
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 using the
reflector cluster-id
command to
avoid routing loops.
Configuring a BGP Confederation
Configuring a BGP confederation is another way for reducing iBGP connections in an AS.