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- Newsgroups: comp.dcom.sys.cisco
- Path: sparky!uunet!mcsun!sun4nl!star.cs.vu.nl!sater
- From: sater@cs.vu.nl (Hans van Staveren)
- Subject: Re: FDDI board refuses to work, 100% cpu load to boot
- Message-ID: <C0p6z3.665@cs.vu.nl>
- Sender: news@cs.vu.nl
- Organization: Fac. Wiskunde & Informatica, VU, Amsterdam
- References: <C0HwL1.8qr@cs.vu.nl>
- Date: Mon, 11 Jan 1993 16:25:50 GMT
- Lines: 34
-
- I wrote:
-
- >I just installed our first FDDI board in our Cisco, and surprise..
- >it doesn't work. It looks like it cannot enter into the ring. I had it
- >installed at first in our ring with 3 Interphase FDDI boards, but when that
- >didn't work I tried looping back the Cisco to itself. Even that did not
- >work. I configured it:
- > interface fddi0
- > ip address 130.37.16.1 255.255.255.0
- > no shutdown
-
- >The router is now very slow, the 'show proc' output shows that the PHY-A
- >and PHY-B processes take all the time. I did a shutdown on the interface
- >and the router is back to normal.
-
- I received a number of replies from people within Cisco. Most of them pointed
- to an internal cable problem and after confirming it with our vendor this
- turned out to be the case. The problem was that our hardware manuals said
- the cables from applique to interface board would be labelled 1,2,3 and 4,
- and then gave a picture how these should be installed to connectors P1,P2,P3
- and P4.
-
- It turned out that the cables were labelled A,B,C and D, and the obvious
- transformation I made was wrong. The A,B,C and D cables should be attached
- to the connectors from left to right, in that order.
-
- Everything works now. I am left with the impression however that installation
- instructions for interface boards should be distributed with the interface
- boards and not with the router itself. That makes it possible to change
- the cabling after selling the router without inconveniencing customers.
-
- Hans van Staveren
- Vrije Universiteit
- Amsterdam, Holland
-