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.
This command automatically restarts the BGP instance for the configuration to
take effect.
clear ip bgp
Reset BGP sessions. The soft parameter (BGP Soft Reconfiguration) clears the policies without resetting
the TCP connection.
S4820T
Syntax
clear ip bgp [vrf vrf-name] * | as-number | ip-address [flap-
statistics | soft [in | out]]
Parameters
vrf vrf-name Enter the keyword vrf and then the name of the VRF to
clear all BGP sessions corresponding to that VRF.
NOTE: Use this attribute to clear a BGP instance
corresponding to either a specific address family in a
default VRF or an IPv4 address family in a a non-default
VRF.
* Enter an asterisk ( * ) to reset all BGP sessions.
as-number Enter the AS number to reset all neighbors belonging to that
AS. The range is from 0 to 65535 (2 byte), from 1 to
4294967295 (4 byte), or from 0.1 to 65535.65535 (dotted
format).
ip-address Enter an IP address in dotted decimal format to reset all
prefixes from that neighbor.
flap-statistics (OPTIONAL) Enter the keyword flap-statistics to reset
the flap statistics on all prefixes from that neighbor.
soft (OPTIONAL) Enter the keyword soft to configure and
activate policies without resetting the BGP TCP session, that
is, BGP Soft Reconfiguration.
NOTE: If you enter the clear ip bgp ip-address
soft command, both inbound and outbound policies
are reset.
in (OPTIONAL) Enter the keyword in to activate only inbound
policies.
out (OPTIONAL) Enter the keyword out to activate only
outbound policies.
400
Border Gateway Protocol