Chapter 1 Information Center; Information Center Overview - H3C S7500 Series Operation Manual

Operation Manual – Information Center
H3C S7500 Series Ethernet Switches

Chapter 1 Information Center

1.1 Information Center Overview

The information center is an indispensable part of Ethernet switches and exists as an
information hub of system software modules. The information center manages most
information outputs; it sorts information carefully, and hence can screen information in
an efficient way. Combined with the debugging program (debugging commands), it
provides powerful support for network administrators and developers in network
operation monitoring and fault diagnosis.
Information items output by the S7500 Series Ethernet Switches are presented in the
following format:
<priority>timestamp sysname module/level/digest:content
Here, angle brackets "<>", spaces, slashes "/" and colon are the fixed format of
information.
Below is an example of log output to a log host:
<188>Apr 9 17:28:50:524 2004 H3C IFNET/5/UPDOWN:Line protocol on the interface
M-Ethernet0/0/0 is UP
The following describes the fields of an information item:
1) Priority
The calculation formula for priority is: priority = facility × 8 + severity – 1. For Comware,
the default facility value is 23 and severity ranges from 1 to 8. Refer to
description of severity levels.
Note that no character is permitted between the priority and time stamp. The priority
takes effect only when the information is sent to the log host.
2) Time stamp
The time stamp sent to the log host is in the format of Mmm dd hh:mm:ss yyyy:
"Mmm" represents a month, and the available values are: Jan, Feb, Mar, Apr, May, Jun,
Jul, Aug, Sep, Oct, Nov and Dec.
"dd" is a date, which must follow a space if less than 10, for example, " 7".
"hh:mm:ss" is the local time, where "hh" is on the 24-hour basis, ranging from 00 to 23,
both "mm" and "ss" range from 00 to 59.
"yyyy" is a year.
Note that a space separates the time stamp and host name.
3) Host name
It refers to the system name of the host, which is "H3C" by default.
(SIP=10.5.1.5 ,SP=1080)
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Chapter 1 Information Center
Table 1-2 for