3Com 6416SW manual Other Problems, Fail Frames are lost, Clients, Directly, Have No problems

Other Problems

Cannot create a		PVC between two ONcore	hub/CELLplex 4000s	located	in
different	clusters.
Explanation:
This is normal. The ONcore			hub/CELLplex	4000	does not allow the creation of
PVCs	over	network-to-network	(NNI) links.

You have created two different PVCs, each one ending at the NNI port.

Note:

Make

sure

that the

VPI

used

by

the

PVC

on

the NNI port corresponds to the

one

of

the

logical

link

defined

on

that

port.

ATM server/token-ring client's applications

fail:

frames are lost.

Token-ring

clients

located behind a Token-ring/ATM bridge can connect to an

ATM

server, but

the

applications/sessions

keep

failing,

while

clients

connected

directly

to

ATM

have

no problems.

Explanation:

The

frame

size

on

the

ATM

server

is

larger

than

the

maximum frame

size allowed by the bridge.

Steps to

Take:

1. Change

the

MAX_FRAME_SIZE

on

the

ATM

server

to

the

maximum

value

allowed

by the bridge (8281 max

frame

size

should

be

8939

bytes).

Note:

You

may

have

to

change

the

MAXDATARCV

parameter

of

the

OS/2

token-ring

NETBIOS clients

to

4168

in

the

PROTOCOL.INI

file.

ONcore hub/CELLplex 4000 Terminal/Telnet very slow or Ping to ONcore hub/CELLplex 4000 very slow.

Explanation: The ONcore hub/CELLplex 4000 is congested by Signalling Calls.

Steps to Take:

1. If	you	cannot be in	front of the ONcore hub/CELLplex	4000,	perform a remote	login
using	Telnet. First make		sure that the trace is not active,		then disable the	ports
7-44 ONcore		ATM Switch/Control	Module: Installation and User's	Guide