>> Which one is on my SS20 motherboard, the 8/2 rx/tx nic or the 64/16 rx/tx
>> nic?
>> 
>> Now, if you would have cited the sparc64 hardware I would have kept quiet.
> 
> Ok - now I've not seen an sbus ethernet card with onboard memory....
> 

That's the sbus with the 10Mb (RJ-45) and a fast-wide diff scsi (isp).

> However I would also never run an ethernet card with as few an 8 rx buffers.
> Asking for trouble....
> 

Yeah, Sun skimped pretty bad for built-in nic's for a while there.