Users Guide

Do not add the as-set parameter to the aggregate. If routes within the aggregate are constantly changing,
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 true: routes meeting the
permit clause are suppressed.
If the route is injected using the network command, that route stills appear 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 BGP route dampening and congure the dampening parameters.
Syntax
bgp dampening [half-life reuse suppress max-suppress-time] [route-map map-
name]
Parameters
half-life (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.
reuse (OPTIONAL) Enter a number as the reuse value, which is compared to the apping
route’s Penalty value. If the Penalty value is less than the reuse value, the apping
route is once again advertised (or no longer suppressed). The range is from 1 to
20000. The default is 750.
suppress (OPTIONAL) Enter a number as the suppress value, which is compared to the
apping route’s Penalty value. If the Penalty value is greater than the suppress
value, the apping route is no longer advertised (that is, it is suppressed). The
range is from 1 to 20000. The default is 2000.
max-suppress-time (OPTIONAL) Enter the maximum number of minutes a route can be suppressed.
The default is four times the half-life value. The range is from 1 to 255. The default
is 60 minutes.
route-map map-
name
(OPTIONAL) Enter the keywords route-map then the name of a congured
route map. Only match commands in the congured route map are supported.
Defaults Disabled.
Command Modes ROUTER BGPV6-ADDRESS FAMILY
Command History
This guide is platform-specic. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
1036
IPv6 Border Gateway Protocol (IPv6 BGP)