Dell Force10 S55T FTOS Command Line Reference Guide for the S55 System FTOS 8. - Page 258
Command Example: i, p as-path access-list, permit
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www.dell.com | support.dell.com Parameters as-path-name Enter the access-list name, up to 140 characters. Defaults Not configured Command Modes CONFIGURATION Example Figure 7-15. Command Example: ip as-path access-list Force10(conf)#ip as-path access-list TestPath Force10(config-as-path)# Usage Use the match as-path or commands to apply the AS-PATH ACL to BGP routes. Information Command History Version 8.1.1.0 Version 7.8.1.0 pre-Version 6.1.1.0 Introduced on E-Series ExaScale Increased name string to accept up to 140 characters. Prior to 7.8.1.0, names are up to 16 characters long. Introduced for E-Series Related Commands match as-path Match on routes contain a specific AS-PATH. Configure filter based on AS-PATH information. permit e Syntax Parameters Create a filter to forward BGP routes that match the route's AS-PATH attributes. Use regular expressions to identify which routes are affected by this filter. permit as-regular-expression To remove this filter, use the no permit as-regular-expression command. as-regular-expression Enter a regular expression to match BGP AS-PATH attributes. Use one or a combination of the following: • . = (period) matches on any single character, including white space • * = (asterisk) matches on sequences in a pattern (zero or more sequences) • + = (plus sign) matches on sequences in a pattern (one or more sequences) • ? = (question mark) matches sequences in a pattern (0 or 1 sequences). You must enter an escape sequence (CTRL+v) prior to entering the ? regular expression. • [] = (brackets) matches a range of single-character patterns. • ^ = (caret) matches the beginning of the input string. (If the caret is used at the beginning of a sequence or range, it matches on everything BUT the characters specified.) • $ = (dollar sign) matches the end of the output string. • _ = (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. • | = (pipe) matches either character. 258 | Access Control Lists (ACL)