Regular expression matches
You can perform a regular expression search on the information being downloaded by entering up to 50 different regular expressions. The monitor attempts to match the contents retrieved to each of the regular expressions.
If a match for a specified regular expression is found, the matched lines (or as much as can fit in the monitor’s internal buffer) are returned in the corresponding $regexpMatchn element. If the regular expression matches more than once in the information downloaded, only the first match is returned. The status of each regular expression test is indicated by the $regexpStatusn elements. You can use the regular expression matches and their status information as criteria for service level classifications.
For information about regular expression syntax, see Regular expression syntax in Internet Service Monitoring.