Deployment Guide

348 | Border Gateway Protocol IPv4 (BGPv4)
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clear ip bgp flap-statistics
c
Clear BGP flap statistics, which includes number of flaps and the time of the last flap.
Syntax
clear ip bgp [vrf vrf-name] flap-statistics [ip-address mask | filter-list as-path-name regexp
regular-expression
]
Parameters
Defaults
None
Command Modes
EXEC Privilege
Usage
Information
If you enter the clear ip bgp flap-statistics command without any parameters, all statistics are
cleared.
Related
Commands
Command
History
Note: This command is supported only on the C-Series.
vrf vrf-name
(OPTIONAL) Enter the keyword vrf and then the name of the VRF to clear BGP
flap statistics corresponding to that VRF.
Note: You can use this attribute on a specific VRF to remove history routes
corresponding to that VRF. You can also use this attribute to return the
suppressed routes corresponding to a specific VRF to an active state.
ip-address mask
(OPTIONAL) Enter an IP address in dotted decimal format and the prefix mask in
slash format (/x) 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.
• ^ = (caret) the beginning of the input string. If you use the caret at the beginning
of a sequence or range, it matches on everything BUT the characters specified.
• $ = (dollar sign) the end of the output string.
show ip bgp flap-statistics Views the BGP flap statistics.
Version 8.4.7.0 Introduced support on C-Series.