Troubleshooting

 

Debug/Syslog Operation

 

 

ipv6

dhcpv6-client:Sends DHCPv6 client debug messages to the configured debug

 

destination.

 

nd: Sends IPv6 debug messages for IPv6 neighbor discovery to the configured debug

 

destination(s).

 

packet: Sends IPv6 packet messages to the debug destination(s).

lldp

Sends LLDP debug logging to the debug destination(s).

ssh

Sends SSH debug messages at the specified level to the debug destination. The levels

 

are fatal, error, info, verbose, debug, debug2, and debug3.

Figure C-8. Summary of Debug/Syslog Configuration Commands

Using the Debug/Syslog feature, you can perform the following operations:

Configure the switch to send Event Log messages to one or more Syslog servers. In addition, you can configure the messages to be sent to the User log facility (default) or to another log facility on configured Syslog servers.

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, the list f configured Syslog servers is displayed.

Display the current Syslog server list when Syslog logging is disabled.

Configuring Debug/Syslog Operation

1.To use a Syslog server as the destination device for debug messaging, follow these steps:

a.Enter the logging < syslog-ip-addr> command at the global configura- tion level to configure the Syslog server IP address and enable Syslog logging. Optionally, you may also specify the destination subsystem to be used on the Syslog server by entering the logging facility command.

If no other Syslog server IP addresses are configured, entering the logging command enables both debug messaging to a Syslog server and the Event debug message type. As a result, the switch automati- cally sends Event Log messages to the Syslog server, regardless of other debug types that may be configured.

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