Deployment Guide

Border Gateway Protocol IPv4 (BGPv4) | 329
Defaults
Not configured.
Command Modes
ROUTER BGP
Command
History
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aggregate-address
c e s
Summarize a range of prefixes to minimize the number of entries in the routing table.
Syntax
aggregate-address ip-address mask [advertise-map map-name] [as-set] [attribute-map
map-name] [summary-only] [suppress-map map-name]
Parameters
Defaults
Not configured.
Command Modes
ROUTER BGP ADDRESS FAMILY
ROUTER BGP ADDRESS FAMILY IPv6
Usage
Information
At least one of the routes included in the aggregate address must be in the BGP routing table for the
configured aggregate to become active.
Do not add the as-set parameter to the aggregate, if routes within the aggregate are constantly
changing as the aggregate will flap to keep track of the changes in the AS_PATH.
In route maps used in the suppress-map parameter, routes meeting the deny clause are not
suppress; in other words, they are allowed. The opposite is true: routes meeting the permit clause are
suppressed.
ipv4 vrf vrf-name
(C-Series only) Enter the keyword vrf followed by the name of the VRF.
ipv6 unicast
Enter BGPv6 mode.
Version 8.4.7.0 Introduced support for VRF on C-Series.
Version 6.5.1.0 Introduced on the C-Series.
ip-address mask
Enter the IP address and mask of the route to be the aggregate address. Enter the IP
address in dotted decimal format (A.B.C.D) and mask in /prefix format (/x).
advertise-map
map-name
(OPTIONAL) Enter the keywords advertise-map followed by the name of a
configured route map to set filters for advertising an aggregate route.
as-set (OPTIONAL) Enter the keyword as-set to generate path attribute information and
include it in the aggregate.
AS_SET includes AS_PATH and community information from the routes included
in the aggregated route.
attribute-map
map-name
(OPTIONAL) Enter the keywords attribute-map followed by the name of a
configured route map to modify attributes of the aggregate, excluding AS_PATH
and NEXT_HOP attributes.
summary-only (OPTIONAL) Enter the keyword summary-only to advertise only the aggregate
address. Specific routes will not be advertised.
suppress-map
map-name
(OPTIONAL) Enter the keywords suppress-map followed by the name of a
configured route map to identify which more-specific routes in the aggregate are
suppressed.