Users Guide

neighbor lter-list
Congure a BGP lter based on the AS-PATH attribute.
C-Series, E-Series TeraScale, S-Series
Syntax
neighbor [ip-address | peer-group-name] filter-list aspath access-list-name
[in | out]
To delete a BGP lter, use the no neighbor [ip-address | peer-group-name] filter-list
aspath access-list-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 lter 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 congured, the default is permit (allow routes).
in Enter the keyword in to lter inbound BGP routes.
out Enter the keyword out to lter outbound BGP routes.
Defaults Not congured.
Command Modes ROUTER BGP Address Family (conf-router_bgp_af)
Command History
Version 7.8.1.0 Introduced on the S-Series.
Version 7.7.1.0 Introduced on the C-Series.
Version 7.6.1.0 Introduced IPv6 MGBP on the E-Series.
Usage Information Use the ip as-path access-list command in CONFIGURATION mode to enter AS-PATH ACL mode
and congure the AS-PATH lters to deny or permit BGP routes based on information in their AS-PATH
attribute.
Related Commands ip as-path access-list – enter AS-PATH ACL mode and congure the AS-PATH lters.
neighbor maximum-prex
Control the number of network prexes received.
C-Series, E-Series TeraScale, S-Series
Syntax
neighbor {ip-address | peer-group-name} maximum-prefix maximum [threshold]
[warning-only]
To return to the default values, use the no neighbor {ip-address | peer-group-name}
maximum-prefix maximum command.
Parameters
ip-address Enter the IP address of the neighbor in dotted decimal format.
472
Border Gateway Protocol