[HECnet] Decnet on RSX-11

Johnny Billquist bqt at softjar.se
Sat Jun 8 17:45:49 PDT 2019


Maybe not much comfort, but MOE isn't using the multinet link to LARRY 
either, but is also talking over ethernet.

   Johnny

On 2019-06-09 02:36, Kurt Hamm wrote:
> Ugh.  Back to work.
> 
> I did see some errors....
> 
> Kurt
> 
> On Sat, Jun 8, 2019, 8:35 PM Johnny Billquist <bqt at softjar.se 
> <mailto:bqt at softjar.se>> wrote:
> 
>     Well, just taking a peek at CURLY, I can also tell that you have not
>     managed to get the multinet links up and running, but are communicating
>     with DECnet over ethernet. :-)
> 
>         Johnny
> 
>     On 2019-06-09 02:20, Kurt Hamm wrote:
>      > That's it!  Everything works great.  I have the node list and can
>     access
>      > reachable nodes from the PDP-11.
>      >
>      > This is just really wonderful.
>      >
>      > As a thank you, I will leave the mailing list alone for a while.  ha!
>      >
>      > Kurt
>      >
>      > On Sat, Jun 8, 2019 at 6:42 PM Johnny Billquist <bqt at softjar.se
>     <mailto:bqt at softjar.se>
>      > <mailto:bqt at softjar.se <mailto:bqt at softjar.se>>> wrote:
>      >
>      >     Ok, a quick rundown on some of the more esoteric details
>     about lines
>      >     and
>      >     circuits might be useful here.
>      >
>      >     First of all, Kurt, you might want to redo the NETGEN and not
>     set the
>      >     system up for DECnet routing. It takes a lot of resources,
>     and if you
>      >     don't really want it, you are much better off with a system
>     not even
>      >     generated for it.
>      >
>      >     The question about remote nodes are just for an initial
>     population of
>      >     your local nodename database. All you need there is really to
>     define
>      >     MIM
>      >     (1.13). You can then copy the whole nodename database from
>     MIM over to
>      >     your machine that way instead. Let me know if you want some
>     details on
>      >     that step.
>      >
>      >
>      >     On 2019-06-08 22:25, Mark Matlock wrote:
>      >      > Kurt,
>      >      >     If you want two circuits like UNA-0 and IP-0-0 I think you
>      >     have to
>      >      > be a routing node (but not an area router).
>      >
>      >     Not really, but maybe. If you define multiple circuits, and
>     are an
>      >     end-node, only one circuit will be active. But others can
>     exist, and
>      >     the
>      >     system will fall back to some other circuit if the active one
>     goes
>      >     down.
>      >     So it can be used as a back connection.
>      >
>      >     However, even as an end-node, you can have several *lines* on and
>      >     active
>      >     at the same time. And this is a trick to use if you want
>      >     DECnet-over-IP,
>      >     but want to be an endnode. You need ethernet for TCP/IP to
>     work, but
>      >     you
>      >     do not want DECnet to use the ethernet circuit.
>      >
>      >     But you configure one IP line as well, and that is the one
>     DECnet will
>      >     be using. Meanwhile, TCP/IP is using the ethernet line.
>      >
>      >     It might sound a little confusing, but think about it for a
>     second, and
>      >     I hope it becomes clear. Otherwise, just ask, and I'll try to
>      >     explain it
>      >     better.
>      >
>      >      > Also, you should define all the nodes you want to talk to with
>      >     NCP in
>      >      > one of the startup files or do it with CFE but I prefer
>     startup
>      >     so it’s
>      >      > simple to change.
>      >
>      >     I would actually say that you wouldn't. Of course, there is
>     nothing
>      >     wrong in doing this, but if you want the full HECnet nodename
>     database,
>      >     it contains 700 nodes. That will take a while to type in.
>      >
>      >     However, you can copy the nodename database from another
>     DECnet node,
>      >     and then use this.
>      >
>      >     But you need at least the nodename of someone where you will
>     be copying
>      >     from to start with, which is why I suggested adding MIM at
>     the start.
>      >
>      >     After that, there is [5,54]NNC which is the nodename
>     collector task.
>      >     Run
>      >     it, collect names from another node, and build a new database
>     with
>      >     this.
>      >     Then stop and restart the node name server, and you have all
>     the nodes
>      >     defined.
>      >
>      >     (The node name server is managed by the command SCP.
>      >     So, SCP STOP followed by SCP START will do it.)
>      >
>      >         Johnny
>      >
>      >     --
>      >     Johnny Billquist                  || "I'm on a bus
>      >                                         ||  on a psychedelic trip
>      >     email: bqt at softjar.se <mailto:bqt at softjar.se>
>     <mailto:bqt at softjar.se <mailto:bqt at softjar.se>>             ||
>      >     Reading murder books
>      >     pdp is alive!                     ||  tryin' to stay hip" -
>     B. Idol
>      >
> 
>     -- 
>     Johnny Billquist                  || "I'm on a bus
>                                         ||  on a psychedelic trip
>     email: bqt at softjar.se <mailto:bqt at softjar.se>             || 
>     Reading murder books
>     pdp is alive!                     ||  tryin' to stay hip" - B. Idol
> 

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol


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