3com 8807 用户指南

The information center is an indispensable part of the switch. It serves as an 
information center of the system software modules. The logging system is 
responsible for most of the information outputs, and it also makes detailed 
classification to filter the information efficiently. Coupled with the debugging 
program, the information center provides powerful support for the network 
administrators and the R&D personnel to monitor the operating status of 
networks and diagnose network failures.

When the log information is output to terminal or log buffer, the following parts 
will be included:

% <priority> Timestamp Sysname Module name/Severity/Digest: Content

For example:

%Jun  7 05:22:03 2003 3Com IFNET/6/UPDOWN:Line protocol on interface 

 

Ethernet2/1/2, changed state to UP 

When the log information is output to information center, the first part will be 
"<Priority>".

For example:

% <189>Jun 7 05:22:03 2003 3Com IFNET/6/UPDOWN:Line protocol on interface 

 

Ethernet0/0/0, changed state to UP 

The description of the components of log information is as follows:

1 %

In practical output, some of the information is started with the % character, which 
means a logging is necessary.

2 Priority

The priority is computed according to following formula: facility*8+severity-1. The 
default value for the facility is 23. The range of severity is 1~8, and the severity will 
be introduced in separate section.

Priority is only effective when information is send to log host. There is no character 
between priority and timestamp.