I have 3 AUIs: two 10BaseT and one 10Base2 (don't have any 10Base2 stuff anymore though). I tested with both the 10BaseT units and it so happens they both had SQE turned off. So after flipping the tiny switch to on, they both work and no more message. I used them with some old Sun Sparc IPC machines in the past and clearly they didn't care. So I must have turned them both off back then. I'm glad it was that simple.
On Thu, Dec 19, 2024 at 7:49 PM Paul Koning via cctalk < cctalk@classiccmp.org> wrote: > Collision check test is, if I remember right, a feature that wasn't in the > Ethernet spec but got added by IEEE 802.3. So old transceivers may not > have it. In spite of what the event says, it's not a send failure because > the SQE test signal occurs right after the packet is finished. If you have > such a transceiver, you may want to look into disabling the check. Failing > that, turn off the event. > > If the transceiver does have SQE, then its failure might be due to a cable > problem. Check the Ethernet cable. It needs to be terminated at both ends > and nowhere else :-) and it needs to be grounded at exactly one point. > > paul > > > On Dec 19, 2024, at 5:15 PM, Warner Losh via cctalk < > cctalk@classiccmp.org> wrote: > > > > It's always SQE with thicknet. Too much or too little. > > > > On Thu, Dec 19, 2024, 3:03 PM Peter Ekstrom via cctalk < > > cctalk@classiccmp.org> wrote: > > > >> I just learned what SQE does. I had to enable it on my AUI and it seems > the > >> collision detection is happy now. > >> > >> -Peter > >> > >> On Thu, Dec 19, 2024 at 9:41 AM Peter Ekstrom <epekst...@gmail.com> > wrote: > >> > >>> Hi all, > >>> > >>> This may be a dumb question but I am a bit stumped. I can't seem to > find > >>> any helpful info in the manuals. I have a DEQNA installed in my 11/23+ > >> and > >>> I have run a NETGEN using the QNA driver. When NETINS runs I start > seeing > >>> messages like these on the console: > >>> > >>> Event type 5.14, Send failed > >>> Occurred 19-DEC-24 09:30:11 on node 10.1 (TYCHO) > >>> Line QNA-0 > >>> Failure reason = Collision detect check failed > >>> > >>> So obviously the link isn't working, but I find nothing helpful about > >>> where to start looking regarding the failed collision detect check. The > >>> line is on: > >>> > >>> NCP>show line qna-0 status > >>> > >>> Line status as of 19-DEC-24 09:36:31 > >>> > >>> Line State > >>> > >>> QNA-0 On > >>> > >>> I have an Ethernet transceiver (I have 2 and have tried both, they > worked > >>> last time I used them) connected to the DEQNA harness, and a cable > >>> connecting it to an old 10Base-T hub. I know that hub works because I > >> have > >>> a couple of other systems (OS/2 laptop and an AS/400) connected to it. > >>> > >>> So does anyone have any ideas of where I can start? > >>> > >>> Thanks in advance! > >>> Peter > >>> > >> > >
