HECnet

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15586 discussions

by roll＠Stupi.SE

Also, the metrics are set on the circuit, and not individual destinations. While this worked more or less ok for DEC back in the day, with the bridge, the cost of two different destinations over the same circuit could in reality be very different. Bridged ethernet is a BAD thing for most protocols. And if you use spanning tree, it's not making optimal use of the topology. Radia finally came around and "Trill" is a routed network to carry ethernet frames. As the cost/hop is in the routing vectors being sent periodiacally, you could implement a "cost/hop" NAT (half nat, one half on send one half on receive and some protocol to exchange how you want the metric matrix to look). -P

12 years, 11 months

MOP vs. Cisco, was Re: [HECnet] _PROVISIONAL_ map of HECnet, courtesy largely of Brian H.

by b4＠gewt.net

On 9 Jan 2013, at 13:07, Ian McLaughlin <ian at platinum.net> wrote: On 2013-01-09, at 10:04 AM, Cory Smelosky <b4 at gewt.net> wrote: I have absolutely no experience with Cisco stuff, hmmm. Perhaps I could learn using dynamips, it'd be easier than re-learning all of Vyatta. If you want to learn Cisco, GNS3 is the cheapest way to go. There's tons of youtube videos showing different Cisco scenarios using GNS3. Ooooh. It looks interesting. Now I just need to find an IOS image. ;) Ian

12 years, 11 months

MOP vs. Cisco, was Re: [HECnet] _PROVISIONAL_ map of HECnet, courtesy largely of Brian H.

by ian＠platinum.net

On 2013-01-09, at 10:10 AM, Dave McGuire <mcguire at neurotica.com> wrote: When you put it that way...hmm that's a nice idea. Let me know if you need any IOS images...I have, umm, pretty much all of 'em. I have the image of my 7206VXR, which is supported under GNS3/dynamips, so I'll use that. Ian

12 years, 11 months

MOP vs. Cisco, was Re: [HECnet] _PROVISIONAL_ map of HECnet, courtesy largely of Brian H.

by wonko＠4amlunch.net

On 1/9/2013 1:08 PM, Cory Smelosky wrote: On 9 Jan 2013, at 13:06, Brian Hechinger <wonko at 4amlunch.net> wrote: On 1/9/2013 1:03 PM, Dave McGuire wrote: On 01/09/2013 12:59 PM, Cory Smelosky wrote: I want in on your crazy GRE and DECnet routing setups! ;) I think of them as quite sane. If one needs to route, one should, oh you know, use a router. ;) I could install vyatta which is linux-based meaning I could /maybe/ build linux-decnet and have it function as an area router. Management could also be done via SNMP, but not to the ease of Cisco. Thoughts? Get a Cisco. It's not like they're tough to find, or very expensive. And you'll use it essentially forever. (because it will last that long!) I've got this 4700 sitting here collecting dust. Now that I have the 1841, 1811w and 2851 I seriously doubt I'll ever touch the 4700 again. Come get it. :) Where would I need to go? ;) Easton, PA. If you aren't familiar with the area, about half way betten NYC and Philly. -brian

12 years, 11 months

MOP vs. Cisco, was Re: [HECnet] _PROVISIONAL_ map of HECnet, courtesy largely of Brian H.

by wonko＠4amlunch.net

On 1/9/2013 1:08 PM, Dave McGuire wrote: On 01/09/2013 01:06 PM, Brian Hechinger wrote: Get a Cisco. It's not like they're tough to find, or very expensive. And you'll use it essentially forever. (because it will last that long!) I've got this 4700 sitting here collecting dust. Now that I have the 1841, 1811w and 2851 I seriously doubt I'll ever touch the 4700 again. Come get it. :) Those are really nice machines, if a bit dated. If Cory doesn't want it, I do! They really are. I've got 3x 100Mbit interfaces for it as well as token ring and HSSI stuffs. I'd rather it went to someone who didn't already own a metric ton of cisco gear, however. :) -brian

12 years, 11 months

MOP vs. Cisco, was Re: [HECnet] _PROVISIONAL_ map of HECnet, courtesy largely of Brian H.

by mcguire＠neurotica.com

On 01/09/2013 01:06 PM, Ian McLaughlin wrote: Get a Cisco. It's not like they're tough to find, or very expensive. And you'll use it essentially forever. (because it will last that long!) But emulation is free and here today, instead of waiting two weeks for an Ebay order to arrive :) Maybe I should try playing with it to see if it's even possible. If we could create a nice simple turnkey VM image, maybe more Hecnet members would implement it... When you put it that way...hmm that's a nice idea. Let me know if you need any IOS images...I have, umm, pretty much all of 'em. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

12 years, 11 months

maintaining data in DNS, was Re: [HECnet] HECnet performance....

by wonko＠4amlunch.net

On 1/9/2013 1:04 PM, Dave McGuire wrote: You could do an AXFR query for the subdomain.;) > >You need to setup zone transfer rights for that though, right? Yes, but that's a line in a file...not tough. No, but added overhead that I don't think we need to deal with. Setting up an API based system is trivial and just requires some sort of credentials to access. -brian

12 years, 11 months

MOP vs. Cisco, was Re: [HECnet] _PROVISIONAL_ map of HECnet, courtesy largely of Brian H.

by b4＠gewt.net

On 9 Jan 2013, at 13:05, Dave McGuire <mcguire at neurotica.com> wrote: On 01/09/2013 01:02 PM, Ian McLaughlin wrote: I want in on your crazy GRE and DECnet routing setups! ;) I could install vyatta which is linux-based meaning I could /maybe/ build linux-decnet and have it function as an area router. Management could also be done via SNMP, but not to the ease of Cisco. Thoughts? I'd use my current router as-is, but FreeBSD lacks DECnet bits. :( What about using dynamips, a Cisco emulator? GNS3 is a beautiful GUI front end for it. I've never tried decnet through it, but I have used it to route between several virtual machines. Dynamips works great, and that might be a sorta-approaching-maybe-reasonable approach if one already has a VM host machine somewhere to run it on. Otherwise...get a Cisco. ;) I have a VM host with plenty of RAM, CPU, and Disk. :) It's even on a UPS that can be run on a generator in emergencies. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

12 years, 11 months

MOP vs. Cisco, was Re: [HECnet] _PROVISIONAL_ map of HECnet, courtesy largely of Brian H.

by ian＠platinum.net

On 2013-01-09, at 10:07 AM, sampsa at mac.com wrote: I used to boot my DS200 over the bridge all the time. I used to boot my football (soccer ball) over the bridge on the way to school all the time :)

12 years, 11 months

MOP vs. Cisco, was Re: [HECnet] _PROVISIONAL_ map of HECnet, courtesy largely of Brian H.

by mcguire＠neurotica.com

On 01/09/2013 01:06 PM, Brian Hechinger wrote: Get a Cisco. It's not like they're tough to find, or very expensive. And you'll use it essentially forever. (because it will last that long!) I've got this 4700 sitting here collecting dust. Now that I have the 1841, 1811w and 2851 I seriously doubt I'll ever touch the 4700 again. Come get it. :) Those are really nice machines, if a bit dated. If Cory doesn't want it, I do! -Dave -- Dave McGuire, AK4HZ New Kensington, PA

12 years, 11 months

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