[Info-vax] DECserver/LAT across DECnet areas?

[Arne Vajhøj]

On 7/22/2023 9:06 AM, Volker Halle wrote:
> Andy Green schrieb am Samstag, 22. Juli 2023 um 14:28:09 UTC+2:
>> Is there a way to get the DECserver 200 to recognize the VAX on 2.2
>> so I can log into it using the DECserver? Is that supposed to
>> happen automagically since the routers are there, or do I have to
>> do something special? Or is it not possible?
> 
> LAT is the abbreviation of 'Local Area Transport' and only works on
> the local LAN. It has nothing to do with DECnet and is not aware of
> DECnet routing etc. The LAT protocol does node discovery via a
> multicast protocol on the LAN and connects via the MAC address of the
> LAT service node, once it has learned about the 'LAT Service' based
> on the LAT multicast announcements.

> PS: Except of your 2 areas are on the same LAN - which would be
> unusual, but possible.

Non-routed bridged-only long distance net would work around
the non-routable characteristics of LAT.

But my experience with LAT (30-35 years ago) is that it is also
where latency sensitive. Excessive delays results in timeout errors.

Arne