3 Configuring the Switch

Configuring Event Logging

The switch allows you to control the logging of error messages, including the type of events that are recorded in switch memory, logging to a remote System Log (syslog) server, and displays a list of recent event messages.

System Log Configuration

The system allows you to enable or disable event logging, and specify which levels are logged to RAM or flash memory.

Severe error messages that are logged to flash memory are permanently stored in the switch to assist in troubleshooting network problems. Up to 4096 log entries can be stored in the flash memory, with the oldest entries being overwritten first when the available log memory (256 kilobytes) has been exceeded.

The System Logs page allows you to configure and limit system messages that are logged to flash or RAM memory. The default is for event levels 0 to 3 to be logged to flash and levels 0 to 7 to be logged to RAM.

Command Attributes

System Log Status – Enables/disables the logging of debug or error messages to the logging process. (Default: Enabled)

Flash Level – Limits log messages saved to the switch’s permanent flash memory for all levels up to the specified level. For example, if level 3 is specified, all messages from level 0 to level 3 will be logged to flash. (Range: 0-7, Default: 3)

 

 

Table 3-3 Logging Levels

Level

Severity Name

 

Description

7

Debug

 

Debugging messages

 

 

 

 

6

Informational

 

Informational messages only

 

 

 

 

5

Notice

 

Normal but significant condition, such as cold start

 

 

 

 

4

Warning

 

Warning conditions (e.g., return false, unexpected return)

 

 

 

 

3

Error

 

Error conditions (e.g., invalid input, default used)

 

 

 

 

2

Critical

 

Critical conditions (e.g., memory allocation, or free memory

 

 

 

error - resource exhausted)

1

Alert

 

Immediate action needed

 

 

 

 

0

Emergency

 

System unusable

 

 

 

 

*There are only Level 2, 5 and 6 error messages for the current firmware release.

RAM Level – Limits log messages saved to the switch’s temporary RAM memory for all levels up to the specified level. For example, if level 7 is specified, all messages from level 0 to level 7 will be logged to RAM. (Range: 0-7, Default: 7)

Note: The Flash Level must be equal to or less than the RAM Level.

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