Management and Configuration Guide K/KA/KB.15.15

Operating notes for debug and Syslog
• Rebooting the switch or pressing the Reset button resets the debug configuration.
Effect of a reboot or resetDebug option
If syslog server IP addresses are stored in the startup-config file, they
are saved across a reboot and the logging destination option remains
enabled. Otherwise, the logging destination is disabled.
logging (debug destination)
Disabled.session (debug destination)
Disabled.ACL (debug type)
Disabled.All (debug type)
If a syslog server IP address is configured in the startup-config file, the
sending of Event Log messages is reset to enabled, regardless of the
last active setting.
event (debug type)
If no syslog server is configured, the sending of Event Log messages is
disabled.
Disabled.IP (debug type)
• Debug commands do not affect normal message output to the Event Log.
Using the debug event command, you can specify that Event Log messages are sent to the
debug destinations you configure (CLI session, syslog servers, or both) in addition to the Event
Log.
• Ensure that your syslog servers accept debug messages.
All syslog messages resulting from a debug operation have a "debug" severity level. If you
configure the switch to send debug messages to a syslog server, ensure that the server's syslog
application is configured to accept the "debug" severity level. (The default configuration for
some syslog applications ignores the "debug" severity level.)
• Duplicate IP addresses are not stored in the list of syslog servers.
• If the default severity value is in effect, all messages that have severities greater than the default
value are passed to syslog. For example, if the default severity is "debug," all messages that
have severities greater than debug are passed to syslog.
• There is a limit of six syslog servers. All syslog servers are sent the same messages using the
same filter parameters. An error is generated for an attempt to add more than six syslog
servers.
• The debug destination logging command allows the forwarding of debug logging activities
to the configured Syslog servers.
• Switch events can be sent to the current console or the debug logging buffer using the debug
event command followed by the debug destination session or debug destination buffer
command respectively.
• The no logging <ip-address> and no logging commands disable the sending of event logs to
Syslog servers. These commands will not affect the results of the debug event and debug
destination <session | buffer | logging> commands.
• If the Syslog server is configured, the no debug destination logging command does not disable
the sending of events to Syslog. It does disable the sending of other debug logs to the Syslog
server.
• If Syslog is configured, the no debug event or no debug all commands do not disable the
sending of events to Syslog unless the debug destination is set to buffer or session.
Debug/syslog operation 425