Deployment Guide

412 | Border Gateway Protocol IPv4 (BGPv4)
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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.
Command
History
bgp dampening
c e
t
s
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
Defaults
Disabled.
Command Modes
ROUTER BGP Address Family (conf-router_bgp_af)
Command
History
bgp soft-reconfig-backup
c e s
Use this command only when route-refresh is not negotiated between peers to avoid having a peer
resend BGP updates.
Syntax
bgp soft-reconfig-backup
To return to the default setting, use the no bgp soft-reconfig-backup command.
Defaults
Off
Command Modes
ROUTER BGP ADDRESS FAMILY (conf-router_bgp_af)
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series
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.
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series
Version 7.6.1.0 Introduced IPv6 MGBP support for E-Series