Dell Command Line Reference Guide for the S4048–ON System


clear ip bgp flap-statistics

Clear BGP flap statistics, which includes number of flaps and the time of the last flap.

clear ip bgp [vrf vrf-name] [ipv4 [multicast | unicast] | ipv6 unicast] [flap-statistics [ipv4-address mask | ipv6–address mask] | filter-list as-path-name | regexp regular-expression]
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.
ipv4 multicast
(OPTIONAL) Enter the keyword ipv4 followed by the keyword multicast to clear information related only to ipv4 multicast routes.
ipv4 unicast
(OPTIONAL) Enter the keyword ipv4 followed by the keyword unicast to clear information related only to ipv4 unicast routes.
ipv6 unicast
(OPTIONAL) Enter the keyword ipv6 followed by the keyword unicast to clear information related only to ipv6 unicast routes.
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.
  • ^ = (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.
Command Modes
EXEC Privilege
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Introduced on the S6010-ON and S4048T-ON.
Introduced on the S3148.
Introduced on the S6100-ON.
Introduced on the S3100 series.
Introduced on the Z9100–ON.
Introduced on the S4048-ON.
Introduced on the S3048-ON.
Added the ipv4 multicast and ipv6 unicast parameters.
Added support for VRF.
Introduced on the Z9500.
Introduced on the S6000.
Introduced on the S4820T.
Introduced on the Z9000.
Introduced on the S4810.
Introduced on the S-Series.
Introduced on the C-Series.
Usage Information
If you enter the clear ip bgp flap-statistics command without any parameters, all statistics are cleared.
Related Commands

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