November 2003 - Test - lists.nanog.org

cooling systems
by Mike Tancsa 06 Nov '03

06 Nov '03

Faced with the prospect once again of significantly higher energy prices coming to our region, we want to start to look at better and more efficient ways to cool our colocation facility. Right now we have several ton of traditional air conditioning units sucking up electricity like its free. As winter is approaching, surely there must be some computer safe way to take advantage of all that cold outside to help contain our energy costs, not to mention be a little more environmentally friendly. We were thinking we could circulate the air up to the roof and cool it there inside some aluminum ducts and then bring it back down. We dont want to just bring in cold air as it is quite dirty outside since we are next to a major highway. Anyone done anything like this before in a computer room setting ? ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike(a)sentex.net Providing Internet since 1994 www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike

16 18

Announcing RISwhois - RIPE NCC IPv4/IPv6 address to origin mapping
by Rene Wilhelm 06 Nov '03

06 Nov '03

[Apologies for duplicate mails] Dear All, RIPE NCC is pleased to announce RISwhois, a new interface to the BGP data collected by the Routing Information Service (RIS). Using a set of ten Remote Route Collectors (RRCs) installed at different locations around the world, the RIS collects BGP information from over 200 IPv4 and IPv6 peers. RISwhois complements our existing prefix query and looking glass tools by providing a higher level view over an entire set of RRC routing tables. The service looks up IPv4 or IPv6 addresses in the most recently collected full RIB dumps and reports the prefixes and origin AS numbers that match the specified IP, as well as the RRCs on which the prefixes were seen. This can help users in obtaining a quick answer on route visibility (i.e. where is it seen, how widely does it spread) and in assigning origin AS numbers to IP numbers in applications such as traceroute. RISwhois listens to the whois port (port 43) and outputs data in a format very similar to the route objects specified in RPSL. Thus applications that, to date, consult a routing registry, like whois.ra.net, can easily obtain more accurate IP to AS assignments by contacting the RISwhois server, riswhois.ripe.net, instead. For example, a study in the context of RIPE NCC's Test Traffic Measurements found 21% of a set of unique IPs unmatched when using the routing registry vs. only 1% unmatched when using RIS data. For more information see: http://www.ripe.net/ris/riswhois.html Please send your comments to ris(a)ripe.net. Best regards, For the RIS team, -- Rene =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Rene Wilhelm RIPE Network Coordination Centre Email: wilhelm(a)ripe.net Amsterdam, the Netherlands Phone: +31 20 535 4444 http://www.ripe.net/ris =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

1 0

Utility Mapping to be featured at the 2003 DPC in Tampa
by Sean Donelan 06 Nov '03

06 Nov '03

Remember how the government got upset a graduate student generated maps of underground utilities, and there were suggestions that his project be classified. Or was the real problem was he had figure out how to do it cheaply, and wasn't planning to sell the information for large sums of money? Utility Mapping to be featured at the 2003 DPC Burnsville, MN (November 5, 2003) - Underground utility mapping will be one of the features of the program for the 2003 Damage Prevention Conference and Exposition (DPC) to be held December 3-5 at the Tampa Convention Center in Tampa, FL. Accurate maps of underground facility locations are still difficult to obtain in many parts of the nation, but you can find solutions at the 2003 DPC! Historically, manual record keeping of locations of underground energy, water and communications systems has been inadequate, and consequences continue to surface as facility owners work to maintain and protect their systems. New technologies and systems are coming on-line to upgrade the map records of these vital underground delivery systems. These include computerized mapping systems, geospatial information databases, and use of global positioning satellites (GPS) to accumulate field data on existing utilities. [...] The exhibit hall will feature a mapping and technology pavilion with vendors showcasing a wide array of products from GIS, GPS, AM, FM, One Call Ticket Management Systems and much, much more! A sampling of the 2003 Mapping & Technology Pavilion exhibitors include: [...]

2 1

Re: Copper 10 gigabit @ 15 metres
by neil＠DOMINO.ORG 05 Nov '03

05 Nov '03

> While there are some smitherings about 10GigE, there are technical reasons and > market reasons it is not really ready for prime yet, that is not to say it's not going > to happen, it is just not going happen now. > Some people are using it in the MAN and WAN now though.

4 5

RE: cooling systems
by Robert A. Hayden 05 Nov '03

05 Nov '03

I used to have a boiler heating system in my home (wood heat) that used anti-freeze treated water tpumped from the boiler in the garage through the house and back. Water is great for moving heat, but you do need to treat it so it doesn't freeze and burst the pipes. On Wed, 5 Nov 2003, Jeffrey Paul wrote: > > > > -----Original Message----- > > From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu] On > > Behalf Of Robert A. Hayden > > Sent: Wed, 2003-11-05 12:50 > > To: Joe Abley > > Cc: Neil J. McRae; Mike Tancsa; Robert E. Seastrom; nanog(a)nanog.org > > Subject: Re: cooling systems > > > > > > > > I've seen some designs that actually use water as the transport and > > many-finned radiators at each end. Radiator transfer heat > > into cold water > > inside which is pumped up a radiator in the sub-zero temps on > > the roof and > > exchanged and then looped back. > > I've never once seen sub-zero water pumped through a tube, except maybe > on documentaries about the arctic (think core sample). I think it's > much more likely a different fluid was used. > > -j >

1 0

attribution
by Randy Bush 05 Nov '03

05 Nov '03

in chicago, kc attributed this quote to me Dopeler effect: the tendency of stupid ideas to seem smarter when they come at you rapidly. the closest attribution i have is The Washington Post's "Style Invitational" asked readers to take any word from the dictionary, alter it by adding, subtracting, or changing one letter, and supply a new definition. randy

2 1

RCMP contact
by - 05 Nov '03

05 Nov '03

I need a contact with the RCMP in Calgary (Alberta) concerning a network fraud issue. If anybody has one, please relay off list. Thx Bert hostmaster(a)nso.org

1 0

Copper 10 gigabit @ 15 metres
by Eric Kuhnke 05 Nov '03

05 Nov '03

http://www.lightreading.com/document.asp?doc_id=42956&site=lightreading http://grouper.ieee.org/groups/802/3/10GBCX4/ Regarding the first URL, I am curious how many networks will be interested in using a 15 metre 10GbE solution. Even for intra-MMR xconns, it seems like the cable length limit will very quickly become an obstacle. I guess it depends what price point copper 10Gb solutions enter the market at, compared to their optical counterparts.

4 4

RE: Sabotage investigation of fiber cuts in Northwest
by Chad Skidmore 05 Nov '03

05 Nov '03

FWIW, the following is the notes from Qwest's outage notification on the 3rd. ------------------------------------------------------------------------ -- NOTES: SS7 DUAL A-LINK FAILURE UNDER INVESTIGATION BY SS7,NFC AND SWITCH. (3) OC48'S FAILED/ SUSPECT FIBER CUT BTWN BLHMWA & E. STANWD RPTR/ UPGRADED TO RED DUE TO NALS/ STILL INVEST./ RR'G SS7 LINK TO RADIO OTDR INDICATES 42 N. OF STTLWA04/ TECH ENROUTE TO ESWDWA RPTR/ ETA 45MINS. TECHS ON SITE NOW / SUSPECT VANDALISM / LAW ENFORCEMENT ON SITE TECHS ARE INSIDE HUT/ CABLE IS CUT AT HUT/ CONFIRMED VANALISM INSIDE HUT TAKING PICTURES INSIDE HUT/ TEN FIBERS CUT/ LOADING EQPT. FROM TRUCK/ NO ETR FIBERS PRIORITIZED / 6 OF 10 FIBERS CUT / SPLICING WILL START IN 15MINS. FIRST FIBERS ARE SPLICED/ A-LINKS RESTORED/ BLOCKING IS ST FIRST FIBERS ARE SPLICED/ A-LINKS RESTORED/ BLOCKING IS STARTING TO CLEAR BLOCKAGE STOPPED AT 12:45 PDT / SPLICING CONTINUES CLEARING ALARMS & FINAL CLEAN UP ONGOING/ 6 FIBERS SPLICE ALL ALARMS HAVE CLEARED 911 BACK ON NORMAL PATH AND TESTED. 6 FIBERS SPLICE ALL ALARMS HAVE CLEARED 911 BACK ON NORMAL PATH AND TESTED. 6 FIBERS SPLICE ALL ALARMS HAVE CLEARED 911 BACK ON NORMAL PATH AND TESTED. RESTORE DATE & TIME 2003-09-03 12:28:44 PDT ------------------------------------------------------------------------ -- Regards, Chad ------------------------ Chad Skidmore One Eighty Networks http://www.go180.net 509-688-8180 -----Original Message----- From: Laurence F. Sheldon, Jr. [mailto:larrysheldon@cox.net] Posted At: Monday, November 03, 2003 8:08 PM Posted To: NANOG Conversation: Sabotage investigation of fiber cuts in Northwest Subject: Re: Sabotage investigation of fiber cuts in Northwest JC Dill wrote: > > At 07:32 PM 11/3/2003, John Fraizer wrote: > >On Mon, 3 Nov 2003, Owen DeLong wrote: > > > > > Maybe I'm missing something, but, if you have the bolt cutters, I > > > don't see why you need the key to an adjacent lock or any of the locks. > > > >Um, cutting a lock out gets it out of the mix but, you still have to > >have the key to one of the other locks to complete the chain again. > >Think about it. > > A cut lock can be replaced with a similar replacement lock and usually > no one will be the wiser. Look at the locks here: > > <http://www.qsl.net/kf4lhp/telweb/microwave/kiv70/padlocks.jpg> > > The lock marked ATC is between 2 other locks (that's a hasp to its > left, with rusty chain further to the left). It could be cut and > replaced with a similar lock linking the other two locks, without > opening either of the other two locks. On gates with many locks (I've > seen chains of 6 or more), there is rarely any interest given to the > locks that are not one's own responsibility. I wonder if that Bell System (F7?) is ever unlocked anymore.

1 0

RE: Hijacked IP space.
by McBurnett, Jim 04 Nov '03

04 Nov '03

/lurkingmode disabled Should we, as a community, register with RIR's with PGP. And use special keys for resources? The only people to have the keys would be the end user/ISP and the RIR. Forged PGP can be done but not so easily. Basically email is so easy to forge should we not do what we do everywhere else and just add security? or ACL's or a firewall or....... /lurkingmode enabled ->-----Original Message----- ->From: william(a)elan.net [mailto:william@elan.net] ->Sent: Tuesday, November 04, 2003 7:00 AM ->To: nanog(a)merit.edu ->Subject: Re: Hijacked IP space. -> -> -> -> ->Also while we're on ip hijacking subject as I mentioned there ->is a new way it ->has been done where instead of reregistering domains, the ->actual email ->account is reused by somebody else and where whois at arin is ->for themost ->part left unchanged (making it difficult for arin to do anything). -> ->Because these cases are difficult to track the original ->owners and to proof ->hijacking or to notice that it happend, it would be nice to stop such ->activity in the first place. So I'd would really be good if ->somebody from ->earthlink contacts me and I can then tell them privately what ->names they ->need to "lock" as far as what their customers can request for ->additional ->emails. Same applies for other ISPs - if you who work for ->company that ->has in the past bought other large ISPs AND where you still ->allow new or ->existing customers to get new email accounts at the domains ->of those old ->companies (i.e. like earthlink is presumably doing with ->netcom.com) then ->let me know domains and I can tell you what not to allow your ->customers ->for emails. -> ->-- ->William Leibzon ->Elan Networks ->william(a)elan.net -> ->

18 23