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Re: several messages
by Suresh Ramasubramanian 05 May '09

05 May '09

Oh lord, just when I thought it was safe to clean out the filter file .. is it kook season again, already? On Tue, May 5, 2009 at 2:38 AM, Dean Anderson <dean(a)av8.com> wrote: > > This would be a good time to do a little background research on John > Levine, and discover that he's a spammer, pretending to be an > anti-spammer, with all the anticipated ill-effects on spam blocking. > > http://www.av8.net/IETF-watch/People/JohnLevine/index.html > > John Levine is a spammer: > > http://www.iadl.org/whitehat/whitehat-story.html > > As are a couple of other prominent "anti-spammers". > > --Dean

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DSX cross-connect solution
by sjk 05 May '09

05 May '09

I am trying to find hardware for a rebuild of our DS1 cross-connect frame and can't seem to find much out there. We've got ~300 DS1s that need to be x-connected between our M13s and I'm seeking an easy to manage solution. I've looked at the Telect panels but I'm concerned that my staff can't deal with wirewrap terminations. Has anyone seen, simply, a high density 66 field that can fit in a 23" rack? TIA -- steve

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RE: DSX cross-connect solution
by Carlos Alcantar 04 May '09

04 May '09

Digital cross connect is the way to go if you have the budget to do that. Turin now force 10 make a good dacs and or the cisco 15454 with a ds3-12xm card can do it as well. -carlos -----Original Message----- From: Chatfield, Terry [mailto:Terry.Chatfield@neustar.biz] Sent: Monday, May 04, 2009 2:37 PM To: nanog(a)nanog.org Subject: RE: DSX cross-connect solution Alternatively, one could use a digital cross-connect. Terry -----Original Message----- From: Ricky Beam [mailto:jfbeam@gmail.com] Sent: Monday, May 04, 2009 5:23 PM To: nanog(a)nanog.org Subject: Re: DSX cross-connect solution On Mon, 04 May 2009 16:05:30 -0400, Wallace Keith <kwallace(a)pcconnection.com> wrote: > I would stick with wire wrap, 66 blocks make an inferior connection. True, but a 66 block will work. Usually. And is easily re-punched. > If someone cannot deal with wire wrapping, they are not living in a > telecom world. Really. Seriously, who cannot do wire wrap? It takes, literally, 5 minutes to learn to do it. And that's with a "screw driver" wirewrap tool. With one of these [http://www.datacomtools.com/catalog/Wire-Wrap-tools/jonard-wire-wrap-gu n.htm], it takes about 10s, and you get a consistent, near perfect wrap every time. (yes, it's a bit pricey, but very worth the cost even if you only use it once to wire a single panel.) --Ricky PS: That's just the gun; it'll need a tip/sleeve. I recommend a complete kit. [http://www.datacomtools.com/catalog/Wire-Wrap-tools/wire-wrap-kits.htm]

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Re: Minnesota to block online gambling sites?
by Scott Weeks 04 May '09

04 May '09

--------------------------------------- > successful. I can see a big nightmare heading this way if ISPs start > caving in to requests like this. --------------------------------------- It's happening all over the place. Not picking on any country or list, just to post a few examples... [AusNOG] Conroy censoring dissent? http://lists.ausnog.net/pipermail/ausnog/2008-October/thread.html http://lists.ausnog.net/pipermail/ausnog/2008-November/thread.html http://www.news.com.au/story/0,23599,22999659-2,00.html [swinog] Censurship in Germany http://www.mail-archive.com/swinog@lists.swinog.ch/msg03581.html [swinog] Justice Order to block websites http://lists.swinog.ch/public/swinog/2008-January/thread.html scott

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who provides bandwidth to Telehouse?
by Jo Rhett 04 May '09

04 May '09

Besides the obvious KDD which shows up in traceroute, does anyone else provide bandwidth to Telehouse? They are spamming contact addresses from the PAIX peering list, and claiming they have every right to do so. We'd like to convince them otherwise. Replies would be best off- list. Received: from yw-out-2324.google.com (yw-out-2324.google.com [74.125.46.28]) by kininvie.sv.svcolo.com (8.14.1/8.14.2) with ESMTP id n3NIKkTW095522 for <ipadmin(a)svcolo.com>; Thu, 23 Apr 2009 11:20:46 -0700 (PDT) (envelope-from managedservice(a)telehouse.com) Received: by yw-out-2324.google.com with SMTP id 2so198588ywt.47 for <ipadmin(a)svcolo.com >; Thu, 23 Apr 2009 11:20:46 -0700 (PDT) Received: by 10.100.171.15 with SMTP id t15mr1759646ane. 99.1240510845890; Thu, 23 Apr 2009 11:20:45 -0700 (PDT) Received: from wohlarsb (fw.telehouse.com [209.137.140.2]) by mx.google.com with ESMTPS id c29sm637866anc.10.2009.04.23.11.20.43 (version=SSLv3 cipher=RC4-MD5); Thu, 23 Apr 2009 11:20:45 -0700 (PDT) Subject: The Security information you missed last Friday Thread-Index: AcnEP/Q6yPwCzf2XRgmtpXMo9zh8vA== Date: Thu, 23 Apr 2009 14:19:00 -0400 To: <ipadmin(a)svcolo.com> From: "Managed Services" <managedservice(a)telehouse.com> X-Mailer: Microsoft Office Outlook 11 X-Mimeole: Produced By Microsoft MimeOLE V6.00.2900.5579 Message-ID: <E27C46955AD044B59D3849186F51E916(a)har.ai.pri> Reply-To: <managedservices(a)telehouse.com> Organization: TELEHOUSE America Jo, You missed the Telehouse WebEx Friday on Security Threats from Virtualization. But good news - we can forward you a copy of the presentation, if you would like to review the security threats that most IT groups are missing. The top threats reviewed include: * The inability to monitor the virtualized environment including machines, OS, and network * How virtualization impacts compliance * Forensic challenges of a virtualized environment * Virtualized machines as attack tools * Why the hypervisor is the weakest security link Just reply to this email for a copy or let us know who at Silicon ValleyColocation we should forward it to. Regards, Ken Rubin Senior Global Account Manager Telehouse America (T) 718-313-1221 (M) 917-829-0397 (F) 718-355-2517 ken.rubin(a)telehouse.com www.telehouse.com -- Jo Rhett Net Consonance : consonant endings by net philanthropy, open source and other randomness

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ground control to TWTelecom
by Jon Lewis 04 May '09

04 May '09

Seems like we were just here, but yet again, I'm having trouble verifying you're accepting a customer route (a different one than last week), and since sending me a copy of our prefix filter was apparently too much to ask, and you make it so easy to talk on the phone with anyone who knows what BGP is, here we are. Perhaps I'll track down our sales person and chew their ear. ---------------------------------------------------------------------- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________

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Intel wants to hook 15 billion embedded devices to the Internet in 6 years
by Chris Boyd 04 May '09

04 May '09

Oddly, none of the courses in the event discuss IPv6. http://www.intelembeddedevent.com/ Intel® Embedded eVent We’re standing at the forefront of the Embedded Internet Era. The opportunities are yours. The networked world is growing at a tremendous pace. In just six years, it’s expected that 15 Billion intelligent devices will be connected to the internet. And, with your imagination and hard work, Intel can be a part of many of the devices that will revolutionize the way we work, talk, play and move. So, Intel is hosting our first virtual tradeshow, the Intel Embedded eVent, and we want you to join us! It’s a one day event that will showcase Intel technologies and our customers’ innovation in intelligent, connected devices.

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Slightly OT: Calculating HVAC requirements for server rooms
by Mike Lyon 04 May '09

04 May '09

Hello All, I am curious what formulas/equations folks use to figure out required cooling for small datacenters in offices. The variables I am using are the size of the room, the total amount of power available for usage and the lightning. Specifically, I am using the guide posted at: http://www.openxtra.co.uk/articles/calculating-heat-load Any other recommendations or suggestions from those folks that have done this before? Thank You in advance. Cheers, Mike

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Re: RE: Slightly OT: Calculating HVAC requirements for server rooms
by joel.mercado＠verizon.net 02 May '09

02 May '09

Just knowing your spacing and were to places perforated tiles is very helpful in maxmizing air and not shortcycling it.. Establishing a Floor Plan [1]http://www.apcmedia.com/salestools/VAVR-6KYMZ7_R0_EN.pdf May 2, 2009 08:41:50 AM, [2]alex(a)corp.nac.net wrote: Calculating heat load in a datacenter is pretty easy. That's not the hard part. Some comments: > I am curious what formulas/equations folks use to figure out required > cooling for small datacenters in offices. The simplest equation to use assumes that you know how much power is going into the room. Btu/hr = watts * 3.412 This further assumes that a typical IT load is very inefficient (which they are).. meaning that, for every watt that goes to a computer / server / router, a significant portion is converted to heat (we assume 100% for design purposes). So, if you have a datacenter consuming 100kw, you'd need 341,200 btu/hr of cooling, or 28 tons of HVAC. Of course, there are other issues (like leakage, windows, doors, humans, lights) but these tend to be a little bit of line noise in a modern datacenter. Also outside environment (is this Quebec or is this Cuba), insulation, design delivery temperature, humidity requirements -- all play a part. > Translation: Hire a f***ing professional. > > And that's exactly what you need to do. Qualified HVAC installers Two comments on this... first of all, the last thing you want is an HVAC 'installer' to design your HVAC system in a datacenter. Secondly, if you find an HVAC engineer who *really* knows datacenter dynamics, that could be a help. But, frankly, there aren't a lot of them. If you need some help with this, let me know. There are a significant amount of questions that need to be asked to give a qualified answer. The cooling capacity question is secondary to the delivery and extraction method. I also submit that any good datacenter operator, who has had years of experience of trial and error, years of engineers who say they know something and don't, and had scores of contractors who say they know something and don't, is in a much better position to talk about this than a PE who designs comfort cooling systems. "Question everything, assume nothing, discuss all, and resolve quickly." -- Alex Rubenstein, AR97, K2AHR, [3]alex(a)nac.net, latency, Al Reuben -- -- Net Access Corporation, 800-NET-ME-36, [4]http://www.nac.net -- References Visible links 1. http://www.apcmedia.com/salestools/VAVR-6KYMZ7_R0_EN.pdf 2. mailto:alex@corp.nac.net 3. mailto:alex@nac.net 4. http://www.nac.net/ Hidden links: 5. http://www.apcmedia.com/salestools/VAVR-6KYMZ7_R0_EN.pdf

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Re: Re: Slightly OT: Calculating HVAC requirements for server rooms
by joel.mercado＠verizon.net 02 May '09

02 May '09

In modern data Centers drop ceiling is installed. The reason being you can create a AIR plenum. If your not going to have a air plenum then you should not have a drop ceiling. If you look at the in the link below you will see were the red arrows are thats were you would installed drop ceiling perferated tiles. Then the crack you will have a housing that sits ontop of the crack unit connected the ceiling to it and pulls air in. [1]http://www.panduit.com/stellent/groups/marketing-corp/documents/land ing_pages/~export/CMSCONT_034718~13/34864-5.gif Jmercado May 2, 2009 06:53:16 AM, [2]jbates(a)brightok.net wrote: William Herrin wrote: > You shouldn't even *have* a drop ceiling in a modern computer room. > You want the room to be as tall as practical so that the air from the > hot aisles has somewhere to go on its way back to the HVAC, other than > back through and around the cabinets. > I love my 30' ceiling. Even with all the things that are wrong with our HVAC setup, the servers survive due to that ceiling. > Personally, I've found that there's a pretty wide disparity between > HVAC professionals that are capable of hooking up a CRAC and turning > it on versus HVAC professionals that understand the holistic picture > including hot aisles, cold aisles, humidity control and flow. I > wouldn't want to call in a professional without first understanding > the problem well enough to assess whether I was getting a competent > answer. I had this issue. They hooked up the redundant systems, but didn't bother with much else. The return feed is below the units pulling ambient air, and the cold air is injected 15+ feet above the isle behind the servers, intermixing with the hot air as it rises up the wall. At least it works, but it could be better and changes will need to be made before I can reach 50% capacity in the racks. Jack References 1. http://www.panduit.com/stellent/groups/marketing-corp/documents/landing_pag… 2. mailto:jbates@brightok.net

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