Architecting a vRealize Log Insight Solution : Understanding vSphere Logs : 2.13 Syslog Event Message Structure
   
2.13 Syslog Event Message Structure
The syslog message element includes additional information about the process that generated the message. The message element has a TAG field and a CONTENT field. The value in the TAG field is the name of the program or process that generated the message. The CONTENT field contains the details of the message.
Figure 3. Syslog Message Structure