HECnet

hecnet@lists.dfupdate.se

4 participants
15588 discussions

_PROVISIONAL_ map of HECnet, courtesy largely of Brian H.

by roll＠Stupi.SE

Yeah more and more of us are using Ciscos to do this. We really need to find a way around this issue that doesn't involve manual maintenance of routing info. You can get the decnet routing table out of the cisco with SNMP. Need to agree on a comunity and a RO pw... -P

13 years

HECnet performance....

by jeep＠scshome.net

Peter, I will set the costs to 10 for STUPI:: when I get home late this evening. -Steve ________________________________ From: owner-hecnet at Update.UU.SE on behalf of Peter Lothberg Sent: Wed 1/9/2013 09:37 To: hecnet at Update.UU.SE Cc: hecnet at Update.UU.SE Subject: RE: [HECnet] HECnet performance.... I'm now trying to get the Multinet links to 192.108.200.211 59.58 (STUPI) cleaned up and re_established,=20 right now only the link to Legato is working properly. SG1=20 had cost 1 on their side instead of 10.=20 I should add that if SG1:: and LEGATO:: need to pass information, the circuit costs favor the Multinet Tunnel links between the two major US hubs. I would rather the Multinet Tunnel be used instead of using the bridge link to Sweden and then back again. -Steve Steve, In that case you are right, and as I said before, the problem is the bridged ethernet. Multinet nodes, could increese the cost on their Ethernets, but it only works one direction, as all the remote nodes has the same metric on their Ethernet towards you. In the SG1:: LEGATO:: case you can do the local optimization as the topology and other nodes on those locations may allow it, but it's not possible to do that in area 59, and especially not if the cisco box in uppsala is in area 1 talking to area 59 with a additional hop. I'm only asking you to set your cost on the multinet link to stupi:: to 10. -P

13 years

Request for comments on subdividing area 9

by b4＠gewt.net

On 9 Jan 2013, at 08:40, Peter Lothberg <roll at Stupi.SE> wrote: Why is it messy? Putting administrative info in addresses that are most likely network endpoints? I'd just feel more organised if I grouped systems a bit more. Once upon a time, I always asked myself "does this make the network faster or cheaper or both" when suggestions that involved work was made. -:) Well, I'd save time coming up with a free node and I'd stop forgetting certain nodes exist. ;) Which would make it cheaper time-wise and easier to manage. :) --P

13 years

Request for comments on subdividing area 9

by roll＠Stupi.SE

Why is it messy? Putting administrative info in addresses that are most likely network endpoints? I'd just feel more organised if I grouped systems a bit more. Once upon a time, I always asked myself "does this make the network faster or cheaper or both" when suggestions that involved work was made. -:) --P

13 years

HECnet performance....

by roll＠Stupi.SE

I'm now trying to get the Multinet links to 192.108.200.211 59.58 (STUPI) cleaned up and re_established,=20 right now only the link to Legato is working properly. SG1=20 had cost 1 on their side instead of 10.=20 I should add that if SG1:: and LEGATO:: need to pass information, the circuit costs favor the Multinet Tunnel links between the two major US hubs. I would rather the Multinet Tunnel be used instead of using the bridge link to Sweden and then back again. -Steve Steve, In that case you are right, and as I said before, the problem is the bridged ethernet. Multinet nodes, could increese the cost on their Ethernets, but it only works one direction, as all the remote nodes has the same metric on their Ethernet towards you. In the SG1:: LEGATO:: case you can do the local optimization as the topology and other nodes on those locations may allow it, but it's not possible to do that in area 59, and especially not if the cisco box in uppsala is in area 1 talking to area 59 with a additional hop. I'm only asking you to set your cost on the multinet link to stupi:: to 10. -P

13 years

HECnet performance....

by roll＠Stupi.SE

I'm now trying to get the Multinet links to 192.108.200.211 59.58 (STUPI) cleaned up and re_established, right now only the link to Legato is working properly. SG1 had cost 1 on their side instead of 10. On VMS systems anyway, LAN circuit costs are set to 4 by default. I always set Multinet circuit costs to 1 or 2 depending on whether it is the preferred route or the alternate route. I would prefer to favor the Multinet Tunnel circuits over the bridge links. They can be anywhere between 4-10 times faster for file copy operations. This is why SG1:: circuit costs are "1" in your case. With the lack of metrics working for real on the bridged ethernet, here is what hapens... stupi->sg1(cost1)-<bridge(cost1) Everyone else sees area 59 with cost 2 Johnny wan't to put the cisco in Uppsala in area 1, well, then all traffic to aread 59 will go through your box and the multine tunnel. Without proper metrics on the bridged ethernet, the best I can think of is that we use the bridged ethernet as primary and the multinet and cisco tunnels as secondary (backup) traffic paths for nodes that are multihomed. You need to change the cost to 10 for me to be able to turn the tunnel back up, as I have in practice infinite BW to Uppsala. -P

13 years

Request for comments on subdividing area 9

by b4＠gewt.net

On 9 Jan 2013, at 07:56, Peter Lothberg <roll at Stupi.SE> wrote: Hello! The current way I allocate node numbers is in sequential order and it's = getting tremendously messy and difficult to manage, so I am going to = come up with a plan to divide things more cleanly and I'm looking for = feedback. Why is it messy? Putting administrative info in addresses that are most likely network endpoints? I'd just feel more organised if I grouped systems a bit more. If we at some time in the future want to get the routing optimal there is one limitation to remember. There is no topology information shared between areas, so if a node in area 1 want's to talk to a node in area 2 and there are more than one link from area 1 to area 2 it will pick the best (metric or router id) link to area 2, and it has no information about what area router in area 2 is closest to the destination node. There'd only be one link to the rest of HECnet, everything else would connect to the primary area router. An optimal HECnet has metrics (costs on links) and all nodes in the same area..... Or one area is basically connecting all it's area routers with for practical purposes infinite bandwidth. --P -- Cory Smelosky http://gewt.net/ Personal stuff! http://gimme-sympathy.org/ My permanently-a-work-in-progress pet project.

13 years

HECnet performance....

by jeep＠scshome.net

-----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Peter Lothberg Sent: Wednesday, January 09, 2013 09:00 To: hecnet at Update.UU.SE Cc: hecnet at Update.UU.SE Subject: Re: [HECnet] HECnet performance.... On 01/08/2013 05:38 PM, Brian Hechinger wrote: Set up a (cisco) tunnel to 130.238.19.60 (and tell me your side IP address). I think it's time to come up with something a little better to track all these. Thoughts? A subdomain under some related domain (perhaps <sub>.hecnet.update.uu.se?) with the tunnel endpoints as A records? -Dave We are not limited to route DECnet packets, we could turn on IP on the tunnels, and CLNP/Phase5.. --P We already some of this in place. At this end <user>@<node>.hecnet.org exists for some machines. Others look more like <user>@<node>.enet.hecnet.org. I have not had time to play much with this lately so I do not remember which ones are in place. The main difference between the two is the path it takes once entering this site and the fact that I have not yet committed to supporting the traffic. I can barely manage my own schedule at this point. :-) -Steve

13 years

[hvlems@zonnet.nl: Re: [HECnet] Request for comments on subdividing area 9]

by roll＠Stupi.SE

Anything important in this? --P --------------- Message-ID: <1952508364-1357686551-cardhu_decombobulator_blackberry.rim.net-757387176- at b3.c6.bise7.blackberry> X-Priority: Normal References: <B3223A23-771F-4C8D-9CDD-66671D6B06DA at gewt.net> <7F8BEC8B-46AF-4B43-A753-73FFA6E37333 at platinum.net> In-Reply-To: <7F8BEC8B-46AF-4B43-A753-73FFA6E37333 at platinum.net> Sensitivity: Normal Importance: Normal Subject: Re: [HECnet] Request for comments on subdividing area 9 To: hecnet at Update.UU.SE From: hvlems at zonnet.nl Date: Tue, 8 Jan 2013 23:09:09 +0000 Content-Type: multipart/alternative; boundary="part1866-boundary-243570870-1106332354" MIME-Version: 1.0 Sender: owner-hecnet at Update.UU.SE Precedence: bulk Reply-To: hecnet at Update.UU.SE --part1866-boundary-243570870-1106332354 Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="Windows-1252" QUZBSUsgeW91IGFyZSBjb3JyZWN0LiBXaGljaCBleHBsYWlucyB0aGUgbm9kZSBhZGRyZXNzZXMg 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13 years

HECnet performance....

by jeep＠scshome.net

-----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Peter Lothberg Sent: Wednesday, January 09, 2013 08:49 To: hecnet at Update.UU.SE Cc: hecnet at Update.UU.SE Subject: Re: [HECnet] HECnet performance.... Peter, Everything is now set up on my end. I now have 3 Cisco tunnels. The = metric is 10 on all of them. Change the metrics to match my side: Tunnel2 Cost 10 tunnel to 192.108.200.213 Cost 20 tunnel to 199.0.131.2 Cost 20 The majority of areas now route through you according to my router: Given that we have no way of setting metrics on the "bridged ethernet" links, this is the best we can do that works in the general case. I'm now trying to get the Multinet links to 192.108.200.211 59.58 (STUPI) cleaned up and re_established, right now only the link to Legato is working properly. SG1 had cost 1 on their side instead of 10. I should add that if SG1:: and LEGATO:: need to pass information, the circuit costs favor the Multinet Tunnel links between the two major US hubs. I would rather the Multinet Tunnel be used instead of using the bridge link to Sweden and then back again. -Steve Anyone else who want a cisco or Multinet HECnet tunnel set up? -P

13 years

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