Diagnosing Problems Concerning the 6416SW Console

The following section describes the problems that may arise after attaching the local console to the 6416SW module through the RS-232 Console port. If you find that the problem does not concern the 6416SW console, continue troubleshooting with

“Diagnosing Problems with ATM Modules” on page 7-14.

No prompt appears on your console screen when you press ENTER.

Steps to Take:

1. Check that the RS-232 cable meets the specifications described in Appendix B, “RS-232 Cable and Modem Requirements” on page B-1.

2.Check that the RS-232 cable is securely plugged into the 6416SW module and the console in the correct ports.

3. The terminal parameters do not match the ONcore communications parameters.

Use Telnet to modify the terminal parameters, using the SET TERMINAL command.

Use

 

the

SHOW DEVICE

command

to

check

the 6416SW

IP

address

and

 

 

subnet

 

mask,

and

the

SET DEVICE IP_ADDRESS command to change them,

 

 

provided that the ARP-server

address

has already been set in the

6416SW.

If

you

have

a

DMM

module

installed,

the

above

commands

must be

entered

from

 

the

DMM

console.

 

 

 

 

 

 

 

 

 

 

 

 

 

4. Try

using

the

default

settings

on

the

terminal

(the

default

parameters

are:

9600

bauds, 8

data bits, 1

stop bit, no parity).

If

this

does

not

work,

try differen

until

you

 

find

the

right configuration.

 

 

 

 

 

 

 

 

 

7-11

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3Com manual Diagnosing Problems Concerning the 6416SW Console