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DES-7200 Configuration Guide Chapter 6 BGP
Configuration
6-23
IBGP peer within this AS into two types, such as client and non-client.
The rule to implement the route reflector within the AS is shown as follows:
Configure the route reflector and specify its client, so the route reflector and
other clients form a cluster. The route reflector establishes the connection
relationship with clients.
The clients of the route reflector within one cluster should not establish the
connection relationship with other BGP Speakers of other clusters.
Within an AS, the full connection relationship is established among the IBGP
peer of non-clients. Where, the IBGP peer of non-clients includes the
following conditions: among several route reflectors within one cluster,
among the route reflector within the cluster and the BGP Speakers which
don’t participate in the route reflector function out of the cluster (In general,
the BGP Speakers don’t support the route reflector function), among the
route reflector within the cluster and the route reflector of other cluster.
The processing rule when the route reflector receives one route is shown as
follows:
The route update received from the EBGP Speaker will be sent to all clients
and non-clients.
The route update received from the clients will be sent to other clients and all
non-clients.
The route update received from the IBGP non-clients will be sent to all its
clients.
To configure the BGP route reflector, execute the following operations in the BGP
configuration mode:
Command Function
DES-7200(config-router)# neighbor
{address | peer-group-name}
route-reflector-client
(Optional) Configure this product as
the route reflector and specify its
clients.
In general, one group is only configured with one route reflector. In this case, the
Router ID of the route reflector can be used to identify this cluster. To increase the
redundancy, you can set more than one route reflector within this cluster. In this
case, you must configure the cluster ID, so that one route reflector can identify the
route update from other route reflectors of this cluster.
Caution
To set several route reflectors for one cluster, it is necessary for you to
configure a cluster ID for this cluster.