ADTRAN AOS Version R10.1.0 Command Reference Manual page 2927

Command Reference Guide
prefix-list <name>
Use the prefix-list command to assign a predefined prefix list to an Internet Protocol version 4 (IPv4) or
Internet Protocol version 6 (IPv6) Border Gateway Protocol (BGP) address family (AF) neighbor on either
the default or nondefault VPN routing and forwarding (VRF) instance. The list is then used to filter BGP
route updates received and/or sent from/by the specified peer. Use the no form of this command to
discontinue use of the prefix list. Variations of this command include:
prefix-list <name> in
prefix-list <name> out
Syntax Description
<name>
in
out
Default Values
By default, no prefix lists are specified for filtering.
Command History
Release 9.3
Release 18.3
Release R10.1.0
Functional Notes
The prefix-list command can be used to specify the prefix list used by a BGP AF neighbor on either the
default or nondefault VRF instance. If the AF neighbor is to be created on a nondefault VRF instance, the
VRF instance must first be created using the command
Once you have created the nondefault VRF instance, you can configure the BGP AF neighbor settings for
the VRF instance using the command
mode. For example, to configure the IPv4 BGP AF neighbor 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)#address-family ipv4
(config-bgp-vrf-ipv4)#neighbor 10.20.1.1
(config-bgp-vrf-ipv4-neighbor)#
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
Assigns the specified prefix list to this BGP AF neighbor.
Specifies that all inbound BGP route updates received from the specified
peer be filtered.
Specifies that all outbound BGP route updates being sent to the specified
peer be filtered.
Command was introduced.
Command was incorporated into Multi-VRF BGP functionality.
Command was expanded to include IPv6 functionality.
vrf <name> on page 2877
Copyright © 2012 ADTRAN, Inc.
BGP AF Neighbor Command Set
vrf <name> route-distinguisher on page
from the router's BGP Configuration
1460.
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