Agent-side log parsers extract structured data from raw logs before delivering to the vRealize Log Insight server. Using log parsers, vRealize Log Insight can analyze logs, extract information from them, and show those results on the server. Log parsers can be configured for both Windows and Linux vRealize Log Insight Agents.

If the syslog protocol is used, fields extracted by parsers are part of STRUCTURED-DATA according to RFC5424.