ADTRAN AOS Version R10.1.0 Command Reference Manual page 2863

Command Reference Guide
bgp
Use the bgp command to instruct AOS on how to handle multi-exit discriminators (MEDs) for all Border
Gateway Protocol (BGP) routes from the same autonomous system (AS) on either the default or nondefault
VPN routing and forwarding (VRF) instance. Use the no form of this command to disable this feature.
Variations of this command include:
bgp always-compare-med
bgp compare-med
bgp deterministic-med
bgp ignore-med
Syntax Description
always-compare-med
compare-med
deterministic-med
ignore-med
Default Values
By default, AOS compares the MED attributes for routes from the same AS.
Command History
Release 11.1
Release 18.3
Functional Notes
The bgp command can be used to specify MED behavior on either the default or nondefault VRF instance.
If the behavior is to be created on a nondefault VRF instance, the VRF instance must first be created using
the command vrf <name> route-distinguisher on page
instance, you can configure the BGP settings for the VRF instance using the command
page 2877 from the router's BGP Configuration mode. For example, to configure the BGP characteristics
for the nondefault VRF instance RED1, enter the following commands:
(config)#vrf RED1 route-distinguisher ip 192.17.250.24:33
(config)#router bgp 100
(config-bgp)#vrf RED1
(config-bgp-vrf)#
For more information about VRF and Multi-VRF BGP configuration, refer to the configuration guides
Configuring IPv4 Multi-VRF in AOS (article number 2156) and Configuring BGP in AOS for Releases
18.03.00/R10.1.0 or Later (article number 3524) available online at https://supportforums.adtran.com.
60000CRG0-35E
Configures AOS to always compare MEDs for all paths for a route,
regardless of the AS through which the paths pass.
Configures AOS to compare MEDs for all received routes.
Configures AOS to compare the MEDs for all routes received from different
neighbors within the same AS.
Configures AOS to disregard MEDs for all received routes.
Command was introduced.
Command was incorporated into Multi-VRF BGP functionality.
Copyright © 2012 ADTRAN, Inc.
1460. Once you have created the nondefault VRF
BGP Command Set
vrf <name> on
2863