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B: Troubleshooting
Monitor Mode
Monitor Mode is a command-line interface used for diagnostic purposes (see Table B-1:
Monitor Mode Commands on page B-2). There are two ways to enter Monitor Mode:
locally via the serial port or remotely via the network.
Entering Monitor Mode Via the Serial Port
To enter Monitor Mode locally:
1
Follow the same principles used in setting the serial configuration parameters (see
Serial Configuration on page 7-2).
Instead of typing three "x" keys, however, type zzz (or xxl) to enter Monitor Mode
with network connections.
Type yyy (or yyy) to enter Monitor Mode without network connections.
2
A 0> prompt indicates that you have successfully entered Monitor Mode.
Entering Monitor Mode Via the Network Port
To enter Monitor Mode using a Telnet connection:
1
First establish a Telnet session to the configuration port (9999). The following
message appears:
Serial Number 1400280
Software Version 4.3 (xxxxxx)
Press Enter to go into Setup Mode
2
Type M (upper case).
3
A 0> prompt indicates that you have successfully entered Monitor Mode.
Monitor Mode Commands
The following commands are available in Monitor Mode. Many commands have an IP
address as an optional parameter (xxx.xxx.xxx.xxx). If the IP address is given, the
command is applied to another Device Server with that IP address. If no IP address is given,
the command is executed locally.
Figure B-1: Entering Monitor Mode Via the Network
MAC address 00:20:4A:14:01:18
B-1
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