Users Guide

aggregate-address
Summarize a range of prefixes to minimize the number of entries in the routing table.
Syntax
aggregate-address ipv6-address prefix-length [advertise-map map-name] [as-
set] [attribute-map map-name] [summary-only] [suppress-map map-name]
Parameters
ipv6-address
prefix-length
Enter the IPv6 address in the x:x:x:x::x format then the prefix length in the / x
format. The range is from /0 to /128.
NOTE: The :: notation specifies successive hexadecimal fields of zeros.
advertise-map
map-name
(OPTIONAL) Enter the keywords advertise-map then the name of a configured
route map to set filters for advertising an aggregate route.
as-set (OPTIONAL) Enter the keywords 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 then 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 keywords summary-only to advertise only the aggregate
address. Specific routes are not advertised.
suppress-map
map-name
(OPTIONAL) Enter the keywords suppress-map then the name of a configured
route map to identify which more-specific routes in the aggregate are suppressed.
Defaults Not configured.
Command Modes ROUTER-BGPV6-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 8.3.19.0 Introduced on the S4820T.
Version 8.4.2.1 Introduced on the C-Series and S4810.
Version 7.4.1.0 Introduced on the E-Series TeraScale.
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, the aggregate flaps 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.
If the route is injected using the network command, that route stills appear in the routing table if the
summary-only parameter is configured in the aggregate-address command.
The summary-only parameter suppresses all advertisements. If you want to suppress advertisements
to only specific neighbors, use the neighbor distribute-list command.
902 IPv6 Border Gateway Protocol (IPv6 BGP)