[HECnet] Mapping - getting close

On 2013-01-12 15:03, Brian Hechinger wrote: 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. Yes. That is one additional complication. However, looking at the current output from sampsa, it looks as if ethernet and multinet links are mixed on the same segment as well. 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. The only way I've come up with to represent this in a somewhat correct way is to give each network segment its own id. You can then list, for each machine, which segment(s) it is attached to. And you can also attach segments to each other. And then you can give costs to attachments. But there is no way NCP can give you this information. Johnny -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 -- 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