CLI Guide

neighbor filter-list
Configure a BGP filter based on the AS-PATH attribute.
C9000 Series
Syntax
neighbor {ip-address | peer-group-name} filter-list as-path-name {in | out}
To delete a BGP filter, use the no neighbor {ip-address | peer-group-name} filter-
list as-path-name {in | out} command.
Parameters
ip-address Enter the IP address of the neighbor in dotted decimal format.
peer-group-name Enter the name of the peer group to apply the filter to all routers in the peer group.
as-path-name
Enter the name of an established AS-PATH access list (up to 140 characters).
If the AS-PATH access list is not configured, the default is permit (allow routes).
in Enter the keyword in to filter inbound BGP routes.
out Enter the keyword out to filter outbound BGP routes.
Defaults Not configured.
Command Modes
● ROUTER BGP
● ROUTER BGP-address-family
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.11.1 Introduced on the Z9000.
7.8.1.0 Introduced on the S-Series.
Increased the name string to accept up to 140 characters. Prior to 7.8.1.0, ACL
names were up to 16 characters long.
7.7.1.0 Introduced on the C-Series.
Usage
Information
To enter AS-PATH ACL mode and configure the AS-PATH filters to deny or permit BGP routes
based on information in their AS-PATH attribute, use the ip as-path access-list command in
CONFIGURATION mode.
Related
Commands
ip as-path access-list — enter AS-PATH ACL mode and configure the AS-PATH filters.
neighbor local-as
To accept external routes from neighbors with a local AS number in the AS number path, configure Internal BGP (IBGP) routers.
C9000 Series
Syntax
neighbor {ip-address | peer-group-name} local-as as-number [no-prepend]
To return to the default value, use the no neighbor {ip-address | peer-group-name}
local-as command.
368 Border Gateway Protocol