summary-only (OPTIONAL) Enter the keyword summary-only to advertise only 
the aggregate address. Specific routes are not 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.
Defaults Not configured.
Command Modes ROUTER BGP Address Family (conf-router_bgp_af)
Command History
Version 7.8.1.0 Introduced on the S-Series.
Version 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 configured 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 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 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 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
Enable MBGP route dampening.
C-Series, E-Series TeraScale, S-Series
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 configured route map.
Only match commands in the configured route map are supported.
Defaults Disabled.
Command Modes ROUTER BGP Address Family (conf-router_bgp_af)
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