H3C Technologies H3C S7500E Series Switches - Manual (Page 188)

12-6
z If the output destination is the log host, the system information is in the following format
according to RFC 3164 (The BSD Syslog Protocol):
timestamp sysname %%nnmodule/level/digest: source content
z The closing set of angel brackets < >, the space, the forward slash /, and the colon are all
required in the above format.
z The format in the previous part is the original format of system information, so you may see
the information in a different format. The displayed format depends on the tools you use to
view the logs.
What follows is a detailed explanation of the fields involved:
Int_16 (priority)
The priority is calculated using the following formula: facility*8+severity, in which facility
represents the logging facility name and can be configured when you set the log host
parameters. The facility ranges from local0 to local7 (16 to 23 in decimal integers) and defaults
to local7. The facility is mainly used to mark different log sources on the log host, query and
filter the logs of the corresponding log source. Severity ranges from 0 to 7. Table 12-1 details
the value and meaning associated with each severity.
Note that the priority field takes effect only when the information has been sent to the log host.
timestamp
Timestamp records the time when system information is generated to allow users to check and
identify system events. You can use the info-center timestamp command to configure whether
to include a timestamp in the system information as well as the timestamp format if it is included.
The time stamp of the system information sent from the information center to the log host is with
a precision of seconds, whereas that of the system information sent from the information center
to the other destinations is with a precision of milliseconds.
sysname
Sysname is the system name of the current host. You can use the sysname command to
modify the system name. (Refer to Device Management Commands in the Fundamentals
Command Reference for details)
%%
This field is a preamble used to identify a vendor. It is displayed only when the output
destination is log host.
nn
This field is a version identifier of syslog. It is displayed only when the output destination is log
host.
module
The module field represents the name of the module that generates system information. You
can enter the info-center source ? command in system view to view the module list.