3Com 6416SW manual Command Specify

Checking

ATM

Address

Registration

If

you

suspect

that

a

Phase

3 problem

is due to faulty ATM

address

registration

between

a

ONcore

hub

and an

attached ATM

device,

follow

these

steps:

1. Enter

the SHOW PORT command to make sure that the ATM media

port is

configured with a UNI interface. If

not, enter

the

SET PORT

command

and specify

uni for

the interface

parameter.

2.Make sure that the attached device supports the ATM network prefix used by the ONcore hub.

To display the network prefix, enter

the

SHOW DEVICE command and note the

leftmost thirteen bytes of the hub's

ATM

address. (See

Appendix E,

“ONcore ATM

Address Formats” on page E-1 for more

information.)

Check the ATM network prefix supported

by

the device. If it is different from the

prefix

set

for

the

hub, use

the

SET

DEVICE ATM_ADDRESS command

to change

the hub's ATM address so that

its

network

prefix is the same as the network prefi

used by the ATM device. Be

sure

to

reconfigure the

ATM

address

of

other ONcore

hubs

that

are

also

attached

to

the

hub.

3. Make

sure

that

the

device

supports

ATM address registration. To check

whether

the device registered its ATM address, use the command

SHOW ATM_ESI. If, for

example, the port on the ATM device isOkayconfiguredPVC-Only,asthe device

supports

only PVC

connections.

4. Make

sure

that

the device is not using

a protocol for

ATM

address registration tha

is incompatible

with

the protocol

used

by

the ONcore

hub.

5. Contact your 3Com service representative.

7-22 ONcore ATM Switch/Control Module: Installation and User's Guide