Network Connection Messages

https://techdocs.broadcom.com/content/dam/broadcom/techdocs/symantec-security-software/web-and-network-security/proxysg/common/LogFieldsSubs.pdf

Rule Name	Rule Type	Classification	Common Event
Network Connection Messages	Base Rule	Information	Network Information Message
Data Successfully Transferred	Sub Rule	Network Traffic	Transfer Complete
Request Tunneled Using CONNECT Method	Sub Rule	Network Traffic	Transfer Complete
Returned Object Not Cacheable	Sub Rule	Information	Cache Information
Requested Object Not In Cache	Sub Rule	Information	Content Not In Cache
Access To Object Denied By Filter	Sub Rule	Access Failure	Access Object Failure
Policy Denied A Method	Sub Rule	Information	General POLICY Information
Failure Occurred	Sub Rule	Warning	Tunnel Setup Failure
New Content Returned From Forced GIMS Request	Sub Rule	Information	Results Returned
Client Forced Revalidation With Origin Server	Sub Rule	Information	General Authentication Attempt
Valid Copy Of Object In Cache	Sub Rule	Information	Valid Content In Cache
TCP Accelerated	Sub Rule	Information	General Proxy Information

Vendor Documentation