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2008.02.20 NANOG 42 Lightning talk notes, round 3
I went ahead and grouped the notes from all three lightning talks together into one set of notes, as the speakers were powering through so quickly there was no time to even save one file and start a new one. ^_^; Again, apologies in advance for the horrific typos and misspellings, I think we're getting a higher and higher prepondeance of fast talkers presenting these days. :) Matt 2008.02.20 Lightning talks Three lightning talks, 10 minutes each. (notes from all 3 in same file for me.) Martin Hannigan from start to transport: submarine cable deployment [email protected], Keflavik Iceland deployed multiple submarine cables, has a background as a captain, done submarine cable deployment. iceland surrounded by water lowcap cable <5G hicap cable 720G lowcap cable is to EOL soon hicap subject to backhoe issue Farice1 Drop a berrilium steel splitter in middle of atlantic to peel off fibers to islands. Security benefits--communication to other countries, rights to access, freedom of information. Performance concerns (speed of light, etc.) .75ms per 150km ROI--will you get return on your investment parameters wet/dry plant manufacturer (tyco) capacity desktop study (DTS) tends to be vendor locked in for full system. biggest cable is 8pair cable. undersea routing--where will you drop it Risks length--too long may be too muc delay repeater distance and sparing; closer, the more you can pump out and handle upgrades to future tech, but costs more. shipping lanes, fisheries, geological considerations fisherman have associations; you've got to talk to the commercial fishers anchors, backhoes--more than 50% cause of outages. permitting to cross international boundries, and pay taxes. sign intent to proceed; gets materials going commision desktop study realeastate for landing spots complete engineering ocean survey, map topography A to Z manufacturer cable in segments, then join it at repeaters. A/Z ends dropped to the beach, cable rolled out Suprise, Greenland connect! 3 routes out of country now 41 active underwater US east and west coast 50 active cable ships that lay/repair ships are shared out, contracted to each other if another ship is closer to where a cut is; they all use a common jointing technique. Cables powered from landing stations, 48vDC powered into the cable. More denser, the cheaper. east coast to london, cables cross all over the place. Telegeography and Cable Operators are your friends. Use armor on cables, bury offshore; costs more, but worth it. prefix mapping to sub cables might be interesting. Be wary of FUD. Fishing conflicts analysis--reroute around fisheries. all nautical charts are in meters; 2150 meters down. Bathymetry charts showing currents, can cause friction landing station approach, very shallow. Credits. wow. ======================================================== Duane Wessels, the measaurement factory day in the life of the internet measurement project. will have a measurement day in March. our data will help researchers You don't have to send data to them; just need it to be collected, indexed, into database so researchers can get to it. motivated by 2001 report challenging reseachers to collect a solid day's worth of data. CAIDA and OARC did one in 2002, 48 hour DNS root server collection expanded in 2007 inspired to further expand for 2008 2007 5 root servers (CEFKM) NaMeX internet exchange, AS 112 Open root servers, etc. what did they learn? 5% of clients responsible for 95% of load at root servers 1-2% of queries are legitimate; rest is junk. query rates doubled from 2006 anycast very effective shows where clients are vs where servers are longitude chart vs bar colours showing where clients connect to servers. what is all the pollution at the roots? lots of repeated queries, identical queries invalid TLDs seem to hit F.root what learned? you always need more disk space than you think collecting is easy; indexing is hard. questions to pursue with DITL data: DNS source of garbage trends in v6, DNSsec, etc. traffic/performance questions botnets? voice/video? is v6 different than v4? RND vs commercial traffic patterns? need to accomodate privacy/legal concerns Make data selectively available, anonymize it. index it into CAIDA's DatCat Please participate! http://www.caida.org/projects/ditl/ http://imdc.datcat.org/ ===================================================== Peter Loesher slide decks are all on the website, btw, so feel free to read through thm on your own. [email protected] BIND, AAAA and the root servers finally, AAAA records for the root servers in the root-servers.net zone initially 6 out of 13 are providing v6 root service about 80-100qps of v6 right now. F root uses v6 in same way as v4; all local nodes are advertising /48, covering /47 advertised on the global nodes to avoid blackholding 13 of 43 nodes worldwide serving v6. Most traffic going to paris and amsterdam, rest goes to global nodes in bay area. very little in japan, possibly due to peering culture in japan. peering with f root over v6 we are ready almost everywhere, let them know, they'll peer with you via v6 BIND changes BIND needs no code changes on its own. ISC will provide updated hints file in 9.5 in the mean time you can fetch your own copy from: ftp://rs.internic.net/domain *whew* PGP signing party in Garden room, quick break. Final talks will start at 11.