[HECnet] Qbus ethernet spare?

On 06/19/2012 11:13 AM, Paul_Koning at Dell.com wrote: That said, the DELQA has a "DEQNA compatibility mode"...whether that makes it as slow and/or buggy as the DEQNA, I don't know. I don't think so. QNA compatibility mode means it works like a QNA from the driver point of view. That was never the issue with the QNA -- if it had worked according to the specification, it would have been quite a good device. The problem was that it never worked correctly, not even after 12 revisions. Finally when rev L didn't work adequately either, the DEC software teams said enough is enough, we're dumping the QNA. The issues were most obvious on VMS; I'm not sure if they were visible enough on the PDP11 OSs to cause concern. Maybe with LAT, probably not or less so with DECnet. I don't remember the details, other than that Local Area VAXclusters were the ones that tended to run into trouble, since those protocols were particularly unforgiving. I remember hearing from 25 years ago the bugs in the DEQNA, but never knew what they were/are. I wonder if that information is archived anywhere. In some Micronotes somewhere maybe? -Dave -- Dave McGuire, AK4HZ New Kensington, PA