[Info-vax] LAT service availability timeout after shutdown

[gerry77 at no.spam.mail.com]

Hello all,

I'm a Hobbyist and I just started to play with LAT services, but I haven't
any terminal server, so I'm using only host systems (both VAX and Alphas).

I've noticed that even after I switch off one of those systems, the others
keep showing the services offered by the former as "Available". If I try
something like SET HOST/LAT that service obviously becomes "Unavailable", at
least on the system on which I try the command, but remains still visible.

Only after about 12 hours, the services offered by a powered down system
effectively disappear from the list kept by the other nodes. It was my
understanding that _shortly_ after a service is gone it should disappear
from the list of available services (and it seems an obvious thing too),
anyway to me 12 hours does not properly seems a short period of time. :-)
I wonder if true terminal servers behave like this or differently...

SYS$MANAGER:LAT$SYSTARTUP.COM has the following on every node:

$ lcp := $latcp
$ lcp set node /connections=both /noservice_responder /ident="xxxxx"
$ lcp create service /ident="xxxxx" 
$ lcp set node /state=on

The list of available services is obtained with:

$ lcp := $latcp     !just once, obviously
$ lcp show service

Every service is actually offered by only one node (OpenVMS V7.2).

How can I shorten the time between a system shutdown and the removal of its
services from the list kept by other nodes? Do there is something I can put
in SYS$SYSTEM:SYSHUTDWN.COM to signal other nodes about the shutdown event?
I've read the relevant manuals, but I haven't found anything useful.

Thank you very much,
G.