3Com 6416SW manual Troubleshooting, Prerequisites

Prerequisites	for	ATM	Troubleshooting
In order	to	determine		the cause	of	a problem during installation of 6416SW and ATM
media modules		or	after	turning ON	the	hub:

The correct microcode must be installed. 6416SW LEDs must function properly.

6416SW and ATM media modules must be plugged into the hub.

To ensure that these conditions are satisfied, follow these steps:

1. From

the

Distributed

Management

Module

(DMM),showentermodule 18.1 verbose

and verify that the level

of

the Fault-Tolerant Controller (RCTL) code

is

at

least

v1.01. If it is not, the

hub

slots

in

which

ATM

media

modules are

installed

may not

receive

power.

2. Make

sure that

the

6416SW

and

ATM media modules are properly inserted in their

slots

and

are

plugged

into

the

connectors in the ATM backplane of

the

hub.

3. Verify

that

all

6416SW

and

ATM

media LEDs are functioning properly

by

pressing

the

LED Test

button on

the

Fault-Tolerant Controller (RCTL) module. If one or

more LEDs on a 6416SW or ATM

media module

do

not

light

ON, replace

the

module(s).

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