THOMSON SpeedTouch 620, Руководство оператора

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Chapter 10
SpeedTouch™ Monitoring
E-DOC-CTC-20051017-0155 v1.0
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10.3.1 The SpeedTouch™ Syslog Daemon
What is Syslog
Syslog is a message generating tool that can be implemented in any network
device. The intention of the tool is to send messages over the network indicating
status, actions, possible problems, etc. from the device.
Although the syslog protocol is widely spread and evolved to a de-facto standard,
only recently some first Internet drafts and informational Request For Comments
(RFC) became available to describe the existing protocol and some proposal for
enhancements.
The SpeedTouch™
Syslog daemon
For the SpeedTouch™, the syslog daemon conforms to the proposed standards as
much as possible.
Syslog messages consist of a message header called Priority and a message body
containing the message itself.
Via the Priority identification it is possible to determine the severity and facility of a
message, hence it allows to diversify the messages according to their importance.
Each severity and each facility can be identified by a numerical value. The sum of
the numerical values of the severity and the facility indicates (the numerical value
of) the priority.
In the following all severities and facilities are listed with respective notation and
numerical values.
Syslog priority severities
Following priority severities are possible for a syslog message generated by the
SpeedTouch™. The severities are listed by descending priority:
Severity Notation Code
Emergency conditions, system unusable emerg 0
Alert conditions, immediate action is needed alert 1
Critical conditions
crit 2
Error conditions
err 3
Warning conditions
warning 4
Normal but significant conditions
notice 5
Informational messages
info 6
Debug-level messages
debug 7