Reference Guide

Border Gateway Protocol IPv4 (BGPv4) | 237
When soft-reconfiguration is enabled for a neighbor and the clear ip bgp soft in command is executed, the
update database stored in the router is replayed and updates are reevaluated. 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 (upon execution of
clear ip bgp soft in), then BGP sends a route-refresh request to the
neighbor and receives all of the peer’s updates.
To use soft reconfiguration, or soft reset, without preconfiguration, both BGP peers must support the soft
route refresh capability, which is advertised in the open message sent when the peers establish a TCP
session.
To determine whether a BGP router supports this capability, use the
show ip bgp neighbors command. If
a router supports the route refresh capability, the following message should be displayed:
Received route refresh capability from peer.
If you specify a BGP peer group by using the peer-group-name argument, all members of the peer group
inherit the characteristic configured with this command.
The following example enables inbound soft reconfiguration for the neighbor 10.108.1.1. All updates
received from this neighbor are stored unmodified, regardless of the inbound policy. When inbound soft
reconfiguration is done later, the stored information is used to generate a new set of inbound updates.
FTOS>router bgp 100
neighbor 10.108.1.1 remote-as 200
neighbor 10.108.1.1 soft-reconfiguration inbound
Route map continue
The BGP route map continue feature (in ROUTE-MAP mode) allows movement from one route-map
entry to a specific route-map entry (the
sequence number). If the sequence number is not specified, the
continue feature moves to the next sequence number (also known as an implied continue). If a match
clause exists, the
continue feature executes only after a successful match occurs. If there are no successful
matches,
continue is ignored.
continue [sequence-number]
Entering this command starts the storage of updates, which is required to do
inbound soft reconfiguration. Outbound BGP soft reconfiguration does not
require inbound soft reconfiguration to be enabled.
Command Syntax Command Mode Purpose