Alcatel-Lucent 060321-10, Rev. B, Справочное руководство CLI

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ip bgp policy aspath-list BGP Commands
page 19-96 OmniSwitch CLI Reference Guide March 2011
ip bgp policy aspath-list
Creates or removes an AS path list.
ip bgp policy aspath-list name “regular_expression”
no ip bgp policy aspath-list name “regular_expression”
Syntax Definitions
name AS path name, e.g., InboundAspath, ranging from 0 to 70 characters, or
a value of none. The AS path name is case sensitive.
regular_expression Regular expression, e.g., “^100 200$” where 100 (followed by a space)
represents the beginning of the list and 200 represents the end. The regu-
lar expression must be enclosed by quotation marks.
Defaults
No IP BGP peer policy AS path-list exists.
Platforms Supported
OmniSwitch 10K
Usage Guidelines
•
Use the no form of this command to remove an AS path list.
•
To create an AS path list, use the ip bgp policy aspath-list command.
•
A regular expression consists of a character string presented in the form of a pattern, e.g., ^100 200$.
Valid regular expression characters (metacharacters) are shown in the table below. See also “Configur-
ing BGP” in your Advanced Routing Guide for more information on using regular expressions in BGP
commands.
Symbol Description
^ Matches the beginning of the AS path list.
123 Matches the AS number 123.
. Matches any single AS number.
? Matches zero or one occurrence of the previous token, which must be an AS number, a dot, an
alternation or a range.
+ Matches one or more occurrences of the previous token, which must be an AS number, a dot,
an alternation or a range.
* Matches zero or more occurrences of the previous token, which must be an AS number, a dot,
an alternation or a range.
( Begins an alternation sequence of AS numbers. It matches any AS number listed in the alterna-
tion sequence.