CLI Guide

bgp soft-reconfig-backup
To avoid the peer from resending messages, use this command only when route-refresh is not
negotiated.
Syntax
bgp soft-reconfig-backup
To return to the default setting, use the no bgp soft-reconfig-backup
command.
Defaults Disabled
Command Modes ROUTER BGP
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
When you enable soft-reconfiguration for a neighbor and you execute the clear
ip bgp soft in command, the update database stored in the router is replayed
and updates are re-evaluated. With this command, the replay and update process is
triggered only if route-refresh request is not negotiated with the peer. If the
request is indeed negotiated (after executing the
clear ip bgp soft in
command), BGP sends a route-refresh request to the neighbor and receives all of
the peer’s updates.
Related
Commands
clear ip bgp — activates inbound policies without resetting the BGP TCP session.
clear ip bgp ipv6 unicast soft
Clear and reapply policies for IPv6 unicast routes without resetting the TCP connection; that is, perform
BGP soft reconfiguration.
Syntax
clear ip bgp {* | as-number | ipv4-neighbor-addr | ipv6-
neighbor-addr | peer-group name} ipv6 unicast soft [in | out]
Parameters
* Clear and reapply an asterisk ( * ) for all BGP sessions.
as-number Clear and reapply policies for all neighbors belonging to the
AS. The range is from 0 to 65535 (2 Byte), from 1 to
4294967295 (4 Byte), or from 0.1 to 0.65535.65535 (Dotted
format).
ipv4-neighbor-
addr | ipv6-
neighbor-addr
Clear and reapply policies for a neighbor.
436
Border Gateway Protocol IPv4 (BGPv4)