Service Manual
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 BGP ADDRESS FAMILY
• ROUTER BGP ADDRESS FAMILY IPv6
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
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.
If the route is injected using the network command, that route still appears in the routing table if you configure
the
summary-only parameter 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.
In the show ip bgp ipv6 unicast command, aggregates contain an ‘a’ in the first column and routes
suppressed by the aggregate contain an ‘s’ in the first column.
bgp always-compare-med
Allows you to enable comparison of the MULTI_EXIT_DISC (MED) attributes in the paths from different external ASs.
Syntax
bgp always-compare-med
636 IPv6 Border Gateway Protocol (IPv6 BGP)