Administrator Guide

Parameters
ipv4-address
mask
(OPTIONAL) Enter an IPv4 address in dotted decimal format and the prefix mask in
slash format (/x) to clear dampening information only that BGP neighbor.
ipv6–address
mask
(OPTIONAL) Enter the IPv6 address and the network mask to clear information on
IPv6 route dampening.
Command Modes EXEC Privilege
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
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
After you enter this command, the software deletes the history routes and returns the suppressed routes
to the Active state.
The clear ip bgp dampening command does not clear the history paths.
clear ip bgp flap-statistics
Clear BGP flap statistics, which includes number of flaps and the time of the last flap.
Z9000
Syntax
clear ip bgp [ipv4 [multicast | unicast] | ipv6 unicast] [flap-statistics
[ipv4-address mask | ipv6–address mask] | filter-list as-path-name | regexp
regular-expression]
Parameters
ipv4-address
mask
(OPTIONAL) Enter an IPv4 address in dotted decimal format and the prefix mask in
slash format (/x) to reset only that prefix.
ipv6–address
mask
(OPTIONAL) Enter the IPv6 address followed by the network mask to reset only
that prefix.
filter-list as-
path-name
(OPTIONAL) Enter the keywords filter-list then the name of a configured
AS-PATH list.
regexp regular-
expression
(OPTIONAL) Enter the keyword regexp then regular expressions. Use one or a
combination of the following:
● . = (period) any single character (including a white space).
● * = (asterisk) the sequences in a pattern (0 or more sequences).
● + = (plus) the sequences in a pattern (1 or more sequences).
● ? = (question mark) sequences in a pattern (either 0 or 1 sequences).
NOTE: Enter an escape sequence (CTRL+v) prior to entering the ? regular
expression.
● [ ] = (brackets) a range of single-character patterns.
● ( ) = (parenthesis) groups a series of pattern elements to a single element.
● { } = (braces) minimum and the maximum match count.
Border Gateway Protocol 291