[net.lan] Comments solicited on UNIBUS Ethernet boards

smb@ulysses.UUCP (Steven Bellovin) (03/18/85)

We need to buy a few more Ethernet boards for gateway machines, and
the choices don't seem too appealing.  3Com boards, aside from their
UNIBUS oddities, are no longer made.  The Interlan NI1010A is obsolete
(and may have been discontinued); besides, I'm reliably informed that
bugs on that board prevent it from communicating with some other Ethernet
gear we have.  I don't know of a 4.2 driver for the new Interlan board;
besides, it's new, and hence I don't trust it.  The Excelan board seems
nice, but it's expensive, it's geared towards putting TCP on-board, and
I can't do that with a gateway machine.  Besides, the only 4.2 driver
I've seen for it doesn't use those features.  Ours DEUNAs work well, but
they're power hogs, well-suited for making toast while sending packets.

Comments or suggestions?  It might be better to post any discussion; I know
I'm not the only one with these questions.

		--Steve Bellovin

tcs@usna.UUCP (Terry Slattery <tcs@usna>) (03/19/85)

> The Interlan NI1010A is obsolete
> (and may have been discontinued); besides, I'm reliably informed that
> bugs on that board prevent it from communicating with some other Ethernet
> gear we have.

The NI1010 hasn't been discontinued (at least the local sales folks
aren't aware of it).  Interlan has been bought out by Micom though.
It's the obvious choice for a Unibus gateway since you don't want to
pay for 'smarts'.  I'd talk to Interlan directly about the problems to
see if they have fixed them.

> The Excelan board seems
> nice, but it's expensive, it's geared towards putting TCP on-board, and
> I can't do that with a gateway machine.  

And you really don't want to either.  Besides, the EXOS 8010 software isn't
capable of just gateway operation.

> Besides, the only 4.2 driver I've seen for it doesn't use those features.  

Correct.  The EXOS 8010 code is 4.1a.  I'd rather have 4.2.

	-tcs
	Terry Slattery	  U.S. Naval Academy	301-267-4413
	ARPA: tcs@brl-bmd     UUCP: decvax!brl-bmd!usna!tcs