Users Guide

Version Description
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the S-Series.
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 conguration to take eect.
clear ip bgp
Reset BGP sessions. The soft parameter (BGP Soft Reconguration) clears the policies without resetting the TCP connection.
Syntax
clear ip bgp [vrf vrf-name] [* | <1–4294967295> | <0.1–65535.65535> |
A.B.C.D {soft {in | out}} | X:X:X:X::X {soft {in | out}} | dampening |
flap-statistics | ipv4 | ipv6 | peer-group]
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
specic 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.
<1-4294967295> Enter <1-4294967295> to clear peers with the AS number.
<0.1-65535.65535> Enter <0.1-65535.65535> to clear peers with the AS number in dot format.
A.B.C.D Enter the BGP neighbor address in the A.B.C.D format to clear.
X:X:X:X::X Enter the BGP neighbor address in the X:X:X:X::X format to clear.
soft (OPTIONAL) Enter the keyword soft to congure and activate policies without
resetting the BGP TCP session, that is, BGP Soft Reconguration.
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.
NOTE: You must execute the clear ip bgp soft out command when
ever there is a change in the local policy. If you do not run this command
after a local policy change, then these policy changes are not reected in
the responses to the peer’s route refresh messages.
dampening Enter the keyword dampening to clear the ap dampening information.
ap-statistics Enter the keywords flap-statistics to clear the ap statistics information.
ipv4 Enter the ipv4 address family to clear.
ipv6 Enter the ipv6 address family to clear.
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Border Gateway Protocol