3Com WX1200 3CRWX120695A manual Logging to the Log Buffer, Set log buffer severity severity-level

626CHAPTER A: TROUBLESHOOTING A WX SWITCH

Logging to the Log Buffer

The system log consists of rolling entries stored as a last-in first-out queue maintained by the WX. Logging to the buffer is enabled by default for events at the error level and higher.

To modify settings to another severity level, use the following command:

set log buffer severity severity-level

For example, to set logging to the buffer for events at the warning level and higher, type the following command:

WX1200# set log buffer severity warning success: change accepted.

To view log entries in the system log buffer, use the following command:

display log buffer [{+-}number-of-messages] [facility facility-name] [matching string] [severity severity-level]

You can display the most recent messages or the oldest messages:

„Type a positive number (for example, +100) to display that number of log entries starting from the oldest in the log.

„Type a negative number (for example, -100) to display that number of log entries starting from the newest in the log.

You can search for strings by using the keyword matching and typing any string, such as a username or IP address.

You can display event information at a particular severity level. (See

Table 54 on page 624 for information on severity levels.)

For example, the following command displays all messages at the error severity level or higher:

WX1200# display log buffer severity error

SYS Jun 02 17:41:35. 176214 ERROR nos_vms_port?add: Failed to set default vlan v1 an:4096 for port 3 rc 1