[Info-vax] Loosing all LAT connections on one machine in DECNet Network

[Bill Pechter]

In article <Xq2dnY2EM-BLwHvUnZ2dnUVZ_jOdnZ2d at giganews.com>,
Richard B. Gilbert <rgilbert88 at comcast.net> wrote:
>JF Mezei wrote:
>> Chris Scheers wrote:
>> 
>>> The DELNI was connected to the company network, which was primarily 
>>> 100MB.  Periodically, something on the 100MB network would start 
>>> generating enough data to swamp the 10MB DELNI, causing LAT to go down.
>> 
>> In this case the "DEC" ethernet segment would be fully paralysed, and
>> LAT announcements from the PDP-11s would also go away. This chap's
>> problem is that only the VAX's LAT service disapears from the decserver.
>> 
>> 
>>> Putting a 10MB switch between the rest of the network and the DELNI 
>>> solved the problem.
>> 
>> If the main ethernet segment has a broadcast storm, then the switch
>> would relay all broadcast packets over to the DEC ethernet segment and
>> swamp it.
>> 
>> If you go to outfits such as Black Box, you can find AUI to RJ45
>> transceivers for cheap. You can then build a twisted pair etehrnet
>> segment and use a modern switch instead of the DELNI hub. And a managed
>> switch might help you analyse LAN problems.
>> 
>> This is what I did to my 3100 and all mighty Microvax II towards the end
>> (and still do to my 4000-600).
>
>You can sometimes find used Cisco gear on e-Bay.  I got a Cisco 1548M, 
>which is a managed switch, on e-Bay for an affordable price.  I don't 
>"manage" it very often but the capability is there.

Hell... I just picked up a 3548XL 48 port switch for about $50.00 on E-Bay.
48 Ports 10BaseT/100BaseT and 2 1gb uplinks...

A cheap switch and a box with both 10BaseT and thinnet would be a good
investment.

Bill

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Digital had it then.  Don't you wish you could buy it now!
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