Concept Guide

show ip bgp regexp
Display the subset of the BGP routing table matching the regular expressions specied.
Syntax
show ip bgp regexp regular-expression [character]
Parameters
regular-expression
[character]
Enter a regular expression then use one or a combination of the following characters to
match:
• . = (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 specied.
• $ = (dollar sign) the end of the output string.
Command Modes
• EXEC
• EXEC Privilege
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
The following describes the show ip bgp regexp command shown in the following example.
Field Description
Network Displays the destination network prex of each BGP route.
Next Hop Displays the next hop address of the BGP router. If 0.0.0.0 is listed in this column, then
non-BGP routes exist in the router’s routing table.
Metric Displays the BGP router’s metric, if assigned.
LocPrf Displays the BGP LOCAL_PREF attribute for the route.
Weight Displays the route’s weight
Path Lists all the AS paths the route passed through to reach the destination network.
Example (S4810)
Dell#show ip bgp regexp ^2914+
BGP table version is 3700481, local router ID is 63.114.8.35
Status codes: s suppressed, S stale, d damped, h history, * valid, > best
362 Border Gateway Protocol IPv4 (BGPv4)