Reference Guide
show ip bgp flap-statistics
View flap statistics on BGP routes.
S4820T
Syntax
show ip bgp [ipv4 unicast] flap-statistics [ip-address [mask]] 
[filter-list as-path-name] [regexp regular-expression]
Parameters
ipv4 unicast
(OPTIONAL) Enter the keywords ipv4 unicast to view 
information only related to ipv4 unicast routes.
ip-address (OPTIONAL) Enter the IP address (in dotted decimal format) of the 
BGP network to view information only on that network.
mask
(OPTIONAL) Enter the network mask (in slash prefix (/x) format) of the 
BGP network address.
filter-list 
as-path-
name
(OPTIONAL) Enter the keyword filter-list then the name of a 
configured AS-PATH ACL. The range is 140 characters.
regexp 
regular-
expression
Enter a regular expression then use one or a combination of the 
following characters to match. The range is 256 characters.
• . = (period) any single character (including a white space).
• * = (asterisk) the sequences in a pattern (zero or more 
sequences).
• + = (plus) the sequences in a pattern (one or more 
sequences).
• ? = (question mark) sequences in a pattern (either zero or 
one 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
• EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, refer to the 
relevant 
FTOS Command Line Reference Guide
.
The following is a list of the FTOS version history for this command.
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