Netgear FS526Tv2 - 24-Port Smart Switch with Gigabit Ports 사용자 가이드
Monitor the Switch and Traffic
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ProSAFE FS526Tv2, FS726Tv2, and FS728TLP Smart Switches
Message Format Concepts
The format of the messages is the same for the memory log, flash log, and server log for a
syslog server.
syslog server.
The following example shows the standard format for a log message:
<14> Mar 24 05:34:05 10.131.12.183-1 UNKN[2176789276]: main_login.c(179)
3855 %% HTTP Session 19 initiated for user admin connected from 10.27.64.122
The following information is included in this example:
•
The number that is contained in the angle brackets represents the message priority,
which is derived from the following values:
which is derived from the following values:
Priority = (facility value × 8) + severity level.
The facility value is usually 1, which means it is a user-level message. Therefore, to
determine the severity level of the message, subtract 8 from the number in the angle
brackets. The example log message has a severity level of 6 (informational).
determine the severity level of the message, subtract 8 from the number in the angle
brackets. The example log message has a severity level of 6 (informational).
The following table describes the severity levels.
Table 6. Severity levels in log messages
Severity
Level
Level
Severity
Level Number
Level Number
Description
Emergency 0
The highest warning level. If the device is down or not functioning properly, an
emergency log is saved to the device.
emergency log is saved to the device.
Alert
1
The second-highest warning level. An alert log is saved if a serious device
malfunction occurs, for example, an important switch function goes down.
malfunction occurs, for example, an important switch function goes down.
Action must be taken immediately.
Critical
2
The third-highest warning level. A critical log is saved if a critical device
malfunction occurs, for example, two ports are not functioning, while the rest
of the ports remain functional.
malfunction occurs, for example, two ports are not functioning, while the rest
of the ports remain functional.
Error
3
A device error has occurred, for example, if a port is offline.
Warning
4
The lowest level of a device warning.
Notice
5
Normal but significant conditions. Provides the network administrators with
device information.
device information.
Info
6
Provides device information.
Debug
7
Provides detailed information about the log.
•
The message was generated on March 24 at 5:34:05 a.m. by the switch with an IP
address of 10.131.12.183.
address of 10.131.12.183.
•
The component that generated the message is unknown, but it came from line 179 of the
main_login.c
main_login.c
file.
Note:
This level of logging generates a large number of messages.