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21-3
Cisco Broadband Access Center 3.8 Administrator Guide
OL-27172-01
Chapter 21 Troubleshooting Broadband Access Center
Logging
Log Levels and Structures
The log file structure is described here, and illustrated in Example 21-1, and includes:
• Domain Name—This is the name of the computer generating the log files.
• Date and Time—This is the date on which a message is logged. This information also identifies the
applicable time zone.
• Facility—This identifies the system which, in this case is the Cisco BAC.
• Sub-facility—This identifies the Cisco BAC subsystem or component.
• Security Level—The logging system defines seven levels of severity (log levels as described in
Table 21-2) that are used to identify the urgency with which you might want to address log issues. The
process of configuring log levels is described in Configuring Log Levels, page 21-4:
• Msg ID—This is a unique identifier for the message text.
• Message—This is the actual log message.
Example 21-1 Sample Log File
Table 21-2 Logging Levels
Log Level Description
0-Emergency System unstable. Sets the logging function to save all
emergency messages.
1-Alert Immediate action needed. Sets the logging function to save
all activities that need immediate action and those of a more
severe nature.
2-Critical Critical conditions exist. Sets the logging function to save all
error messages and those of a more severe nature
3-Error Error conditions exist. Sets the logging function to save all
error messages and those of a more severe nature.
4-Warning Warning conditions exist. Sets the logging function to save all
warning messages and those of a more severe nature.
5-Notification A normal, but significant, condition exists. Sets the logging
function to save all notification messages and those of a more
severe nature
6-Information Informational messages. Sets the logging function to save all
logging messages available
Note Another level known as 7-DEBUG is used exclusively by Cisco for debugging purposes. Do
not use this level except at the direction of the Cisco TAC.
Domain
Name Data and Time Facility
Sub-
facility
Security
Level Msg ID Message
BAC1: 2006 04 21 07:28:00 EDT: BAC- RDU- 6 0236: BAC Regional Distribution Unit starting up
BAC1: 2006 04 21 07:28:00 EDT: BAC- RDU- 6 0566: Initialized API defaults
BAC1: 2006 04 21 07:28:00 EDT: BAC- RDU- 6 0568: Initialized server defaults