Chapter 8 Troubleshooting
Troubleshooting Tools
Cisco SCE 2000 4xGBE Installation and Configuration Guide
8-4 OL-7824-04
show telnet status
Telnet deamon is enabled.
• show line vty timeout — Shows the timeout configured for Telnet sessions.
Following is a sample output from the show line vty timeout command.
Timeout is 30 minutes
• Troubleshooting the link interface subsystem:
• show interface GigabitEthernet 0/# — Displays information for a specific GBE
Interface.
Following is a sample output from the show interface command.
ip address: 10.1.6.145
subnet mask: 255.255.0.0
Configured duplex: auto
AutoNegotiation is On, link is Up, actual duplex: half
• show interface GigabitEthernet 0/# counters — Displays the values of counters
of a GBE interface.
Following is a sample output from the show interface counters command.
In total octets: 191520
In good unicast packets: 560
In good multicast packets: 0
In good broadcast packets: 0
In packets discarded: 0
In packets with CRC/Alignment error: 0
In undersized packets: 0
In oversized packets: 0
Out total octets: 0
Out unicast packets: 0
Out non unicast packets: 0
Out packets discarded: 0
Refer to The User Log (on page 8-4) for an explanation of commands related to the user log.
The User Log
The user log is an ASCII file that can be viewed in any editor. It contains a record of system
events, including startup, shutdown and errors. You can use the Logger to view the user log to
determine whether or not the system is functioning properly, as well as for technical support
purposes.

The Logging System

Events are logged to one of two log files. After a file reaches maximum capacity, the events
logged in that file are then temporarily archived. New events are then automatically logged to the
alternate log file. When the second log file reaches maximum capacity, the system then reverts to
logging events to the first log file, thus overwriting the temporarily archived information stored in
that file.
Basic operations include:
• Copying the User Log to an external source
• Viewing the User Log
• Clearing the User Log