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C-26
Troubleshooting
Using Logging To Identify Problem Sources
Debug and Syslog Operation
You can direct switch debug (Event log) messages to these destinations:
■ Up to six SyslogD servers
■ One management-access session through:
• A direct-connect RS-232 console CLI session
• A Telnet session
• An SSH session
Figure C-9. Example of Debug Output to a Console CLI Session
Debug logging requires a logging destination (SyslogD server and/or a session
type), and involves the logging and debug destination commands. Actions you
can perform with Debug and Syslog operation include:
■ Configure the switch to send Event Log messages to one or more SyslogD
servers. Included is the option to send the messages to the user log facility
(default) on the configured servers, or to another log facility.
Note As of April, 2006, the logging facility < facility-name > option (described on
page C-28) is available on the switches covered in this guide.
For the latest feature information on ProCurve switches, visit the
ProCurve Web site and check the latest release notes for the switch
products you use.
■ Configure the switch to send Event Log messages to the current manage-
ment-access session (serial-connect CLI, Telnet CLI, or SSH).
■ Disable all Syslog debug logging while retaining the Syslog addresses from
the switch configuration. This allows you to configure Syslog messaging
and then disable and re-enable it as needed.
■ Display the current debug configuration. If Syslog logging is currently
active, this includes the Syslog server list.
■ Display the current Syslog server list when Syslog logging is disabled.
ProCurve(Config)# debug destination session
ProCurve(Config)# EVNT I 01/01/06 05:03:45 ports: port 17 is now off-line
EVNT I 01/01/06 05:03:45 vlan: VLAN_20 virtual LAN disabled
EVNT I 01/01/06 05:03:45 ip: VLAN_20: network disabled on 10.255.120.1
EVNT I 01/01/06 05:03:47 ports: port 18 is now Blocked by LACP
EVNT I 01/01/06 05:03:49 ports: port 18 is now on-line
ENVT I 01/01/06 05:03:49 vlan: VLAN_20 virtual LAN enabled
EVNT I 01/01/06 05:03:50 ip: VLAN_20: network enabled on 10.255.120.1 1