Administrator Guide

Layer 3 Routing Commands 1268
Statements are applied in the order in which they are created. New
statements are added to the end of the list. The statement with the first
matching regular expression is applied.
Up to 128 AS path access lists can be configured, with up to 64 statements
each. To enter the question mark within a regular expression, first enter
CTRL-V to prevent the CLI from interpreting the question mark as a request
for help.
Command History
Introduced in version 6.2.0.1 firmware.
Special Character/Symbol Behavior
asterisk * Matches zero or more sequences of the
pattern.
brackets [] Designates a range of single-character
patterns.
caret ^ Matches the beginning of the input
string.
dollar sign $ Matches the end of the input string.
hyphen - Separates the end points of a range.
period . Matches any single character, including
white space.
plus sign + Matches 1 or more sequences of the
pattern.
question mark ? Matches 0 or 1 occurrences of the
pattern.
underscore _ Matches a comma (,), left brace ({),
right brace (}), left parenthesis, right
parenthesis, the beginning of the input
string, the end of the input string, or a
space.
2CSNXXX_SWUM204.book Page 1268 Monday, January 25, 2016 1:25 PM