/cfg/sys/syslog/sesslog
Session Log Menu
The Session Log menu lets you turn session logging on and off, and define which fields are included in the session log sent from a real server or NAT device.
Session logs are sent when the sessions are deleted or aged out.
Session logs are sent via the data port to the syslog servers or saved to disk to be exported later using the command /maint/sesslog/export.
You can also select to do both - send to syslog server and save to disk - though this option affects performance.
Source, destination, and date/time are always logged.
The session log is configured globally and can be enabled per virtual service or filter using the commands: /cfg/slb/virt/service/sesslog and /cfg/slb/filt/adv/sesslog
Notes
*Session are sent to the defined syslog host on port 514 only.
*Alteon uses both source and destination port 514 to send session log messages.
Session logs appear in syslogs with a severity level set to 7. Syslog server severity should be set to 7 to receive updates.
The format of the session log can be set using the /cfg/sys/syslog/format command.
 
[Session Log Menu]
fields - Set session fields to log

mode - Set the session log collection mode
on - Turn session logging ON
off - Turn session logging OFF
cur - Display current session log settings
 
Session Log Menu Options (/cfg/sys/syslog/sesslog) 
Command Syntax and Usage
fields [real <d|e>] [nat <d|e>] miliseconds <d|e>
 
Specify to includes the real server data in the syslog messages.
Values: Enable, Disable
Note: If enabled but not present, an IP 0.0.0.0 will be shown.
Specify to includes the NAT session data in the syslog messages.
Values: Enable, Disable
Specifies to show session log in milliseconds granularity.
Note: When Millisecond Time Granularity is disabled, the session log is sent with seconds granularity.
Values: Enable, Disable
Default for new installation: Enable
Default for upgrade:
 –  if session logging enabled: Disable
 –  if session logging disabled: Enable
mode <syslog|disk|both>
 
Specifies the session log connection mode.
Depending on the configuration, session logs can be sent to the syslog servers or can be saved to disk to be exported later, or can be both sent to the server and saved to disk.
Values: Syslog, Disk, Both.
Note: Selecting “disk” or “both” may impair performance on the SP CPU.
on
 
Enables session logging.
off
 
Disables session logging.
cur
 
Displays the current session logging settings.