Configure Bgp Add Confederation-Peer Sub-As-Number - Extreme Networks ExtremeWare XOS Command Reference Manual

BGP Commands

configure bgp add confederation-peer sub-AS-number

configure bgp add confederation-peer sub-AS-number <number>
Description
Adds a sub-AS to a confederation.
Syntax Description
number Specifies a sub-AS number.
Default
N/A.
Usage Guidelines
Invoke this command multiple times to add multiple sub-ASs.
IBGP requires networks to use a fully-meshed router configuration. This requirement does not scale
well, especially when BGP is used as an interior gateway protocol. One way to reduce the size of a
fully-meshed AS is to divide the AS into multiple sub-autonomous systems and group them into a
routing confederation. Within the confederation, all BGP speakers in each sub-AS must be fully-meshed.
The confederation is advertised to other networks as a single AS.
Example
The following command adds one sub-AS to a confederation:
configure bgp add confederation-peer sub-AS-number 65002
History
This command was available in ExtremeWare XOS 10.1.
784 ExtremeWare XOS 11.0 Command Reference Guide