Users Guide

Defaults Not congured.
Command Modes ROUTER BGP Address Family (conf-router_bgp_af)
Command History
Version Description
9.2(1.0) Introduced on the Z9500.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series.
Usage Information
At least one of the routes included in the aggregate address must be in the BGP routing table for the
congured aggregate to become active.
If routes within the aggregate are constantly changing, do not add the as-set parameter to the aggregate
as the aggregate aps 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 also true; routes meeting the permit clause are suppressed.
If the route is injected via the network command, that route still appears in the routing table if the
summary-only parameter is congured in the aggregate-address command.
The summary-only parameter suppresses all advertisements. If you want to suppress advertisements to
only specic neighbors, use the neighbor distribute-list command.
bgp dampening
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
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 1 to 45. The default is 15 minutes.
route-map map-
name
(OPTIONAL) Enter the keyword route-map followed by the name of a
congured route map.
Only match commands in the congured route map are supported.
Defaults Disabled.
Command Modes ROUTER BGP Address Family (conf-router_bgp_af)
Command History
Version Description
9.2(1.0) Introduced on the Z9500.
Border Gateway Protocol
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