Reference Guide

IPv6 Border Gateway Protocol (IPv6 BGP) | 829
Defaults
Not configured.
Command Modes
ROUTER BGPV6-ADDRESS FAMILY
Command
History
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 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 via the network command, that route will still 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.
bgp dampening
c e
Enable MBGP route dampening.
Syntax
bgp dampening [half-life time] [route-map map-name]
To disable route dampening, use the
no bgp dampening [half-life time] [route-map map-name]
command.
Parameters
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.
Version 8.4.2.1 Introduced on C-Series and S4810
Version 7.4.1.0 Introduced on E-Series TeraScale
half-life time
(OPTIONAL) Enter the number of minutes after which the Penalty is
decreased. After the router assigns a Penalty of 1024 to a route, the
Penalty is decreased by half, after the half-life period expires.
Range: 1 to 45.
Default: 15 minutes
route-map map-name (OPTIONAL) Enter the keyword route-map followed by the name of a
configured route map.
Only match commands in the configured route map are supported.