[HECnet] Mapping - getting close

[Brian Hechinger]

It's not that there are no routers. It's the fact that from a DECnet point of view the bridge misrepresents distance. If there is a tunnel between sites (Multinet, Cisco, etc) it is very obvious there is separation. With the bridge it's impossible to tell if two nodes are physically next to each other or have an ocean in between them.

I have some ideas for how to get bridge info but that's for later. There is plenty to do before we get to that point.

-brian

On Jan 12, 2013, at 8:58, Johnny Billquist <bqt at softjar.se> wrote:

On 2013-01-12 14:46, Rob Jarratt wrote:
-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE]
On Behalf Of Johnny Billquist
Sent: 12 January 2013 13:07
To: hecnet at Update.UU.SE
Cc: sampsa at mac.com
Subject: Re: [HECnet] Mapping - getting close

On 2013-01-12 11:41, sampsa at mac.com wrote:
Bit more accurate, if messier:

http://rhesus.sampsa.com/hnmap3.svg

If you ask me, I think this idea is dead. You cannot get a good
representation
of how the topology really is from trying to walk nodes using NCP.

The above picture is a good example of the problems. Looking at it from my
point of view, MIM, PONDUS, ERSATZ, TARDIS, WXP and JOCKE are all
actually sitting one common ethernet. All the lines and seemingly relative
locations are just incorrect.

This time, it would appear as if SG1.1 were the bridged ethernet. But the
picture does it wrong anyway, since there are no multinet tunnels on the
bridge. That would suggest that SG1.1 is some kind of merging of several
actual networks, with no real corresponding entity at all.

    Johnny



Isn't this because, in many cases, there are no routers between the physical
network segments?

There are definitely a router in between if we talk about the bridge and a multinet tunnel...
(Or any ethernet segment and a multinet tunnel...)

    Johnny


Regards

Rob






sampsa






On 12 Jan 2013, at 10:45, hvlems at zonnet.nl wrote:

That seems to be more in agreement with what A44RTR sees of Hecnet:
5 areas (9,42,52,59,61) are reachable thru dimma, 4 (18,19,20,33) via
SG1 and 3 (3,7,8)   via Gorvax.
-----Original Message-----
From: Cory Smelosky <b4 at gewt.net>
Sender: owner-hecnet at Update.UU.SE
Date: Fri, 11 Jan 2013 22:07:54
To: <hecnet at Update.UU.SE>
Reply-To: hecnet at Update.UU.SE
Subject: Re: [HECnet] Mapping - getting close


On 11 Jan 2013, at 22:06, Brian Hechinger <wonko at 4amlunch.net>
wrote:

On Jan 11, 2013, at 22:03, Cory Smelosky <b4 at gewt.net> wrote:


On 11 Jan 2013, at 22:01, Brian Hechinger <wonko at 4amlunch.net>
wrote:

On Jan 11, 2013, at 21:15, Cory Smelosky <b4 at gewt.net> wrote:


On 11 Jan 2013, at 21:14, Johnny Billquist <bqt at softjar.se> wrote:

On 2013-01-12 00:37, sampsa at mac.com wrote:
Another with some overlap but less horizontal space:

http://rhesus.sampsa.com/hnmap2.svg

Looks rather weird. I assume PONDUS.637 is actually an attempt at
the ethernet bridge, but it don't match reality much.
Also, totally missing some areas, like area 59.

And area 9.but Ciscos aren't handled yet. :p

I'm working on that. :)

What's the current plan for solving it?

I'm concurrently attacking it from three different directions: ssh,
snmp
and mop remote console.

My virtual cisco only supports SSH1. ;)

I probably misconfigured SNMP.

MOP remote console might work!   How would I test again?


First one done wins. :)

I'd like to get all three working though for ultimate flexibility.

-brian

--
Cory Smelosky
http://gewt.net/ Personal stuff!
http://gimme-sympathy.org/ My permanently-a-work-in-progress pet
project.


--
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


-- 
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