Dell Force10 C150 Configuration Manual page 257

Step Command Syntax
neighbor {
5
ip-address
peer-group-name
{ in | out }
as-path-name
show config
Use the
as-path-access-list
Include this filter
criteria.
Configure BGP route reflectors
BGP route reflectors are intended for Autonomous Systems with a large mesh and they reduce the amount
of BGP control traffic. With route reflection configured properly, IBGP routers are not fully meshed within
a cluster but all receive routing information.
Configure clusters of routers where one router is a concentration router and others are clients who receive
their updates from the concentration router.
Use the following commands in the CONFIGURATION ROUTER BGP mode to configure a route
reflector.
Command Syntax
bgp cluster-id
cluster-id
neighbor {
|
ip-address
}
peer-group-name
route-reflector-client
To view a route reflector configuration, use the
ROUTER BGP mode or
When you enable a route reflector, FTOS automatically enables route reflection to all clients. To disable
route reflection between all clients in this reflector, use the
CONFIGURATION ROUTER BGP mode. All clients should be fully meshed before you disable route
reflection.
Command Mode
| CONFIG-ROUTER-B
} filter-list
GP
command in CONFIGURATION ROUTER BGP mode and
command in EXEC Privilege mode to view which commands are configured.
permit .*
in your AS-PATH ACL to forward all routes not meeting the AS-PATH ACL
Command Mode
CONFIG-ROUTER-
BGP
CONFIG-ROUTER-
BGP
show running-config bgp
Purpose
Filter routes based on the criteria in the
configured route map. Configure the following
parameters:
• ip-address
neighbor's IP address or the peer group's
name.
•
as-path-name:
configured AS-PATH ACL.
in: apply the AS-PATH ACL map to
•
inbound routes.
out: apply the AS-PATH ACL to outbound
•
routes.
Purpose
Assign an ID to a router reflector cluster.
You can have multiple clusters in an AS.
Configure the local router to function as the route
reflector and a specified neighbor or peer group to be
the route-reflector clients in the cluster.
show config
command in the CONFIGURATION
in EXEC Privilege mode.
no bgp client-to-client reflection
Border Gateway Protocol IPv4 (BGPv4) | 257
or peer-group-name: enter the
enter the name of a
show ip
command in