Configuring Route Reflector - Cisco Nexus 3000 Series Configuration Manual

Configuring Advanced BGP
S e n d d o c u m e n t c o m m e n t s t o n e x u s 3 k - d o c f e e d b a c k @ c i s c o . c o m
Command
bgp confederation peers as-number
[ as-number2... ]
Example:
switch(config-router)# bgp confederation
peers 5 33 44

Configuring Route Reflector

You can configure iBGP peers as route reflector clients to the local BGP speaker, which acts as the route
reflector. Together, a route reflector and its clients form a cluster. A cluster of clients usually has a single
route reflector. In such instances, the cluster is identified by the router ID of the route reflector. To
increase redundancy and avoid a single point of failure in the network, you can configure a cluster with
more than one route reflector. You must configure all route reflectors in the cluster with the same 4-byte
cluster ID so that a route reflector can recognize updates from route reflectors in the same cluster.
BEFORE YOU BEGIN
Ensure that you have enabled the BGP feature (see the
page
SUMMARY STEPS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, NX-OS Release 5.0(3)U1(1)
6-24
5-11).
configure terminal
router bgp as-number
cluster-id cluster-id
address-family ipv4 {unicast | multicast}
(Optional) client-to-client reflection
exit
neighbor ip-address remote-as as-number
address-family ipv4 {unicast | multicast}
route-reflector-client
show bgp ip {unicast | multicast} neighbors
(Optional) copy running-config startup-config
Chapter 6
Purpose
Specifies a list of autonomous systems that belong
to the confederation. This command triggers an
automatic notification and session reset for the
BGP neighbor sessions.
"Enabling the BGP Feature" section on
Configuring Advanced BGP