Troubleshooting - Nortel Application Switch Installation Manual

Troubleshooting

Table 13 outlines some of the problems that may be encountered during the installation and
configuration process as well as possible solutions.
Table 13 Installation and Configuration Troubleshooting
Problem
A port Link LED (green) does not
light. When the port link state is
checked, the status is reported as
down.
The CLI command prompt does
not appear after the establishment
of a switch connection through the
console, Telnet, or SSH.
The switch is unable to contact the
specified TFTP or FTP server and
download files.
Possible Cause
A port configuration mismatch
between two devices or a cable
problem.
The operating system may have
been damaged.
There may be a problem with the
network connection, the TFTP or
FTP server, or with the switch
software.
Nortel Application Switch Hardware Installation Guide
Solution
If the switch port is configured with
a specific speed or duplex mode
check to see that the other device
is set to the same configuration. If
the switch port is configured to
auto-negotiate, verify that the
other device is also set to
auto-negotiate. Refer to the switch
software manuals for more
information about port
configuration, setting speed and
mode.
Perform a serial upgrade of the
operating system of the switch
software. For more information on
the serial upgrade procedure, refer
to the Command Reference
contained on the CD supplied as
part of the documentation kit
provided with the unit.
Ensure that the network
connection and TFTP or FTP
server are functioning properly. If
the problem is with the software,
perform a serial upgrade of the
switch software. For more
information on the serial upgrade
procedure, refer to the Command
Reference contained on the CD
supplied as part of the
documentation kit provided with
the unit.
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