[HECnet] Multinet peerings...?
Robert Jarratt
robert.jarratt at ntlworld.com
Fri Jan 15 14:53:02 PST 2016
> -----Original Message-----
> From: owner-hecnet at Update.UU.SE [mailto:owner-
> hecnet at Update.UU.SE] On Behalf Of Johnny Billquist
> Sent: 15 January 2016 02:42
> To: hecnet at Update.UU.SE
> Subject: Re: [HECnet] Multinet peerings...?
>
> On 2016-01-15 03:25, Brian Hechinger wrote:
> >
> >> On Jan 14, 2016, at 8:03 PM, <Paul_Koning at Dell.com>
> <Paul_Koning at Dell.com> wrote:
> >>
> >>
<SNIP>
> >
> > And this is what I was (and always have been) thinking. Make “shorter”
> ethernet segments that are less geographically diverse. Put routers between
> them. That should solve most problems, no?
>
> Yes. This is actually just the traditional way networks are designed.
> Ethernet is a LAN - as in local. It's not designed for long haul connections. It
> only works because the internet today have pretty amazing capacity
> compared to the 80s.
>
> But to get a more traditional topology, we need the routers in between
> somehow - and the WAN links.
> The problem with that have been that much DECnet gear only supports
> various links that best would be described as arcane by todays standards, in
> addition to the ethernet. How many use X.25 nowadays? Or synchronous
> serial lines?
>
> Well, if you were running a Cisco box, you could tunnel DECnet over GRE.
> Not everyone have one of those. The other option more "generally"
> available was VMS machines running Multinet, as that supported DECnet
> links carried over IP.
>
> One option that is slowly becoming more and more plausible are specific
> routers, such as Pauls python router, and Rob Jarrats implementation.
>
Indeed, that is partly why I wrote mine. The other reason is just that I thought it would be good fun!
> I can now happily add another. I think I found the annoying bug in my
> Multinet-compatible DECnet driver for RSX, so now RSX can also haul long
> links over point-to-point instead of having to rely on the bridge.
>
> First link, between MIM and LEGATO is up, and looking stable.
> More coming, I hope. Steve, how about SG1? ;-)
>
> Peter, would you like a link or two between somewhere at your end and
> MIM as well? Maybe less useful, since we already have DIMMA that does
> the same.
>
> Johnny
>
> --
> 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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