Bgp Confederation Identifier - D-Link xStack DGS-3620 Series Reference Manual

DGS-3620 m/ mSW Rls. 1.02.000

2-14 bgp confederation identifier

bgp confederation identifier AS-NUMBER
no bgp confederation identifier
Syntax Description
AS-NUMBER
Default
Command Mode
Usage Guideline
Example
Switch(config)#router bgp 10
Switch(config-router)#bgp confederation identifier 20
Switch(config-router)#
E
CLI Reference Guide
This command is used to specify a BGP confederation identifier. Use the no form
of this command to remove the confederation identifier.
Autonomous System numbers which use to specify a BGP confederation. The
value is from 1 to 4294967295, but AS TRANS (23456).
N/A.
Router configuration mode.
A confederation can be used to reduce the internal BGP (iBGP) mesh by dividing
a large single AS into multiple subs-AS. External peers interact with the
confederation as if it is a single AS.
Each subs-AS is fully meshed within itself and it has connections to other sub
ASs within the confederation. The next hop, Multi Exit Discriminator (MED), and
local preference information is preserved throughout the confederation, allowing
users to retain a single Interior Gateway Protocol (IGP) for all the autonomous
systems.
Use the show ip bgp confederation command to verify your settings..
This example shows how to create a confederation in which the AS number is
20:
bgp confederation identifier
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