Reference Guide

Version 7.8.1.0 Introduced on the S-Series.
Version 7.7.1.0 Introduced on the C-Series.
Usage
Information
Peering sessions are reset when you change the router ID of a BGP router.
bgp soft-reconfig-backup
To avoid the peer from resending messages, use this command only when route-refresh is not negotiated.
S4820T
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
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 9.1(0.0) Added support for IPv6.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced on the S-Series.
Version 7.7.1.0 Introduced on the C-Series.
Version 7.2.1.0 Introduced.
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.
capture bgp-pdu neighbor
Enable capture of an IPv4 BGP neighbor packet.
S4820T
Syntax
capture bgp-pdu neighbor ipv4-address direction {both | rx |
tx}
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