Dell W-7030 AOS 6.4.x User Guide - Page 1107

Configuring an ESI Group, Add the Health-Check Ping and ESI Servers Use these CLI commands to configure an ESI server group, identify its associated ping health-check method, and associate a server with this group: esi group name ping profile_name server server_identity Using the ESI Group in a Session Access Control List Use these CLI commands to define the redirection filter for sending traffic to the ESI server. ip access-list session policy user any svc-http redirect esi-group group direction both Understanding Basic Regular Expression (BRE) Syntax The ESI syslog parser supports regular expressions created using the Basic Regular Expression (BRE) syntax described in this section. BRE syntax consists of instructions-character-matching operators (described in Table 242), repetition operators (described in Table 243), or expression anchors (described in Table 244)-used to defined the search or match target. This section contains the following topics: l "Character-Matching Operators" on page 512 l "Regular Expression Repetition Operators" on page 513 l "Regular Expression Anchors" on page 513 l "References" on page 514 Character-Matching Operators Character-matching operators define what the search will match. Table 242: Character-matching operators in regular expressions Operator Description Sample . Match any one character. grep .ord sample.txt Result Matches ford, lord, 2ord, etc. in the file sample.txt. [ ] Match any one character grep [cng]ord sample.txt Matches only cord, nord, and listed between the brackets gord [^] Match any one character not grep [^cn]ord sample.txt Matches lord, 2ord, etc., but listed between the brackets not cord or nord grep [a-zA-Z]ord sample.txt Matches aord, bord, Aord, Bord, etc. grep [^0-9]ord sample.txt Matches Aord, aord, etc., but not 2ord, etc. 1107 | External Services Interface Dell Networking W-Series ArubaOS 6.4.x | User Guide