>You bet, this "traffic" on the NI backbone doesn't interfere with each
>other. So if one system is swapping on a cluster disk and another is just
>doing telnet type access then they both "see" a full 10MBits of bandwidth.
>The only time you get collisions is when two systems try to access the same
>third party and the switch can often interleave those packets such that
>there are way fewer collisions.
Hmmm, you've got me thinking I need to redo what's going into the 10/100
8-Port Switch, and what goes into the 10/100 8-Port Hub.
>> > Now all I need is a console multiplexor.
>>
>>Any idea's? This is something I *REALLY* need.
>
>Well its "easy" to do in a powered box. A few of the CMOS switches, a few
>connectors, and you're done. I even figured I could switch it remotely by
>using the DTR line coming up to "toggle" the next system. Thus running
>something like HyperTerm and doing disconnect/reconnect type operations
>would cycle through each console. My issue is that I'm trying to do it all
>passively and that leads to some questions about tying lines together
>before you break contact. (and mechanical switches are so much harder to
>control). My "worst" idea is to use a "wall wart" type supply to bring
>power to the switch box, second worst is to run a couple of lines off the
>supply in the top VLC. I suspect its too much current to uses the "phantom
>power" trick on the RS232 port.
OK, I was thinking an easy off the shelf solution :^)
>(Of course if I want to be anal I can run all the consoles into the
>harmonica box off a CXYA16 in the 4000/200 and use that machine as a
>console server)
Actually this is more or less the solution I was thinking of if I couldn't
find an off the shelf solution. Is there any console server software for
VMS? We'd been using Sparc 2's with ton's of serial ports at work, but now
are switching to PC's running Linux with ton's of ports. The downside of
this is the best system I can come up with for this at the moment would be
my MicroVAX 3, and I don't want to put that in my apartment running full
time! Guess I need a MV3100 with a bunch of ports.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh_at_aracnet.com (primary) | Linux Enthusiast |
| healyzh_at_holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
|
http://www.aracnet.com/~healyzh/ |
Received on Tue Oct 03 2000 - 13:13:13 BST