Reference Guide

Version 8.4.2.1 Introduced on the C-Series and S4810.
Version 8.2.1.0 Introduced on the E-Series ExaScale.
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 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 dampening
Enable MBGP route dampening.
Z9000
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
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. The
range is from 1 to 45. The default is 15 minutes.
route-map map-
name
(OPTIONAL) Enter the keywords route-map then the name of a
configured route map. Only match commands in the configured route
map are supported.
Defaults Disabled.
Command Modes ROUTER BGPV6-ADDRESS FAMILY
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
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