Thank you Mark! You are absolutely right * there are two jumpers to switch. The 6-pin block jumper was unlabeled, so I was reluctant to move it. Now I can get rid of that Thinnet...
Art Frank
Manager of Information Systems
OHS Foundation
[log in to unmask]
(503) 220-8320
>>> "Mark Hill" <[log in to unmask]> 10/05/00 12:16PM >>>
Have you set both jumpers on the DTC? There is a second one which is
actually a 6 pin bank, which needs to be switched also. It is just to the
left of the other.
Mark Hill
[log in to unmask]
Systems Administrator
Hammacher Schlemmer
9180 Le Saint Drive
Fairfield, OH 45014
Tel: (513) 860-4570 Ext. 2230
Fax: (513) 860-3589
Cell: (513) 616-9062
-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf
Of Arthur Frank
Sent: Thursday, October 05, 2000 2:12 PM
To: [log in to unmask]
Subject: [HP3000-L] DTC + network strangeness
Hello,
We have very recently upgraded our network wiring, and my DTC 48 is giving
me a little attitude. Here's the story.
Before the network upgrade: The DTC and our HP 3000 (series 957) were
connected to the network via the BNC connectors and through the Thinnet. We
had several hubs hanging off of the Thinnet, some of them daisy-chained
together. Everything worked, but collisions were becoming a problem.
After the network upgrade: HP 3000 is directly connected to one of three
brand-spanking-new Cisco Catalyst 3548XL 10/100 switches via the AUI port
and a transceiver. The switches are stacked through Cisco GBICs. The
end-users are all directly connected to one of these switches as well. One
of the old hubs, with the Thinnet attached, is connected to one of the
switches. The DTC is connected to the Thinnet. Everything works, but my
goal is to get rid of the Thinnet.
The problem: I've tried to get the DTC to communicate via the AUI port, but
nothing seems to work. I have pulled the network card on the DTC, flipped
the jumper from "I" (internal) to "E" (external). I attach the AUI
transceiver, connect the transceiver to the switch, turn the DTC on, and I
get a "40" error (cannot communicate with the network) on the DTC. The link
light on the transceiver is on. The link light on the switch is on. I
thought, "Hmmm. The switches are set to auto-negotiate at the moment.
Maybe that's the issue." So I connect the AUI transceiver to the old hub
instead, turn on the DTC, and I still get the "40" error. When I switch
everything back to the Thinnet, it works fine.
Has anyone seen this sort of behavior? My guesses right now are: Bad AUI
port on the DTC, but my hardware support guy has never seen just one port go
bad ¯ it's usually both. Bad AUI transceiver, but it's brand new, and it
seems weird that the link light is on in both places. Bad cabling, but it's
all new, been tested, etc. Am I missing something?
TIA,
Art Frank
Manager of Information Systems
OHS Foundation
[log in to unmask]
(503) 220-8320
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