Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!mcvax!inria!lri!rd From: rd@lri.lri.fr (Roland Dirlewanger) Newsgroups: comp.dcom.lans,comp.bugs.4bsd Subject: Re: NP100 Ethernet Controller problem under 4.3BSD Message-ID: <187@lri.lri.fr> Date: Wed, 5-Aug-87 09:34:33 EDT Article-I.D.: lri.187 Posted: Wed Aug 5 09:34:33 1987 Date-Received: Sat, 8-Aug-87 08:52:48 EDT References: <186@lri.lri.fr> <758@cadre.dsl.PITTSBURGH.EDU> Organization: LRI, Orsay - France Lines: 50 Keywords: np100, 4.3BSD Xref: mnetor comp.dcom.lans:712 comp.bugs.4bsd:480 In article <758@cadre.dsl.PITTSBURGH.EDU>, sean@cadre.dsl.PITTSBURGH.EDU (Sean McLinden) writes: > In article <186@lri.lri.fr> rd@lri.lri.fr (Roland Dirlewanger) writes: [Description of the strange behaviour of the 4.3BSD generic NP100's driver] > I noticed the same problem which appeared to be "fixed" by powering down > the Unibus and powering it up, again. Not very satisfactory. > A couple of other points: Around April there was a revision made to the > Berkeley NP100 code which you may want to get a copy of. In particular, > the driver and pseudo-driver were affected. I got the new version of the driver. It solved all the problems. > Interestingly, we actually bought two of these boards but MICOM tried to > talk us out of them. Their contention was that there was little or no benefit > to the intelligent controller in the BSD Unix environment because most of > the protocol stuff is handled in the kernel. For that reason, they recommended > two NT1010s. I think they had some problems with the software at the beginning. Although the NP100 was said to work under 4.2BSD, the French distributor of Micom/Interlan products strongly encouraged us to switch to 4.3BSD before installing the board. I don't know if the NP100 board really improves the transfert rate on the Ethernet, but there are almost two major reasons why I didn't want an NI1010 board: 1/ the NI1010 requires more electrical power from the Unibus as the NP100 (NI1010: 6.7 A, NP100: 4.5 A) 2/ the NI1010 is not 802.3 compatible. So you can't connect the NI1010 board to a Fan-Out unit (this kind of boxes acting like eight different transceivers). You need to put it on a separate transceiver, handling both Ethernet 1 and 802.3 (like Interlan's NT100 transceiver) Since I installed the new driver, I'm quite happy with the NP100. > Also, I would love to have > a copy of the sources for np.image (and a cross compiler for the CPU), > but I don't know if these are available. The Berkeley distributed code > comes from MICOM. Me too. I also would also like to know how to use the npdump facility. -- Roland Dirlewanger Tel: (1) 69 41 66 20 UNIVERSITE PARIS-SUD - LRI - Batiment 490 E-mail: rd@sun1.lri.fr 91405 Orsay Cedex - France