Spring 2002U.C. Berkeley -- EECS Internet POPs, Telecom Hotels, and Internet Data Centers CS – The Converged Network Spring 2002 George Porter

Spring 2002U.C. Berkeley -- EECS Internet: collection of networks This talk is about connectivity and computation –How do the networks in the Internet communicate with each other? –What do transit providers do with their traffic? –Motivation for computation in the network (Internet Data Centers)

Spring 2002U.C. Berkeley -- EECS Computers increasingly connected

Spring 2002U.C. Berkeley -- EECS

Spring 2002U.C. Berkeley -- EECS

Spring 2002U.C. Berkeley -- EECS NSFnet Managed by Merit –ANS, IBM, MCI, State of Michigan Consisted of T-1 connections In 1992, moved to T-3 links run by Advanced Network & Services (ANSnet)

Spring 2002U.C. Berkeley -- EECS Post NFSnet vBNS (very high-speed backbone network services) run by MCI Additional NAPs (Network Access Points) –MAE-East, D.C. – MFS Datanet (now MCI Worldcom) –Ameritech, Chicago – Ameritech –PacBell, San Jose – PacBell –Sprint, Pennsauken, NJ - Sprint

Spring 2002U.C. Berkeley -- EECS Many new Commercial NAPs ATLnap (Atlanta) Bellcore Multimedia exchange NY6iX – New York IPv6 MAE-LA Seattle IX MAE-Houston PAIX Equinix eXchange Linx (London) FreeIX (France) AMS-IX (Amsterdam) etc

Spring 2002U.C. Berkeley -- EECS Internet POPs: Two Examples NeoSoft Inc., Houston Texas AMS-IX (Amsterdam)

Spring 2002U.C. Berkeley -- EECS Internet POPs: Two Examples NeoSoft Inc., Houston Texas AMS-IX (Amsterdam)

Spring 2002U.C. Berkeley -- EECS BBS in 1989, became an ISP in 1992 Founder Karl Lehenbauer (Left) I worked there from

Spring 2002U.C. Berkeley -- EECS Initial Connectivity Originally, NeoSoft connected to NSFnet via Rice T1 cost $14k up front, $2k/month Cisco router IGS $10k 198.??.xx.yy from Sesquinet’s address space

Spring 2002U.C. Berkeley -- EECS New Connectivity Eventually bought fractional DS3 from MCI (Sprint wouldn’t route less than /20 due to problems) On own CIDR block (128 class C’s: ) BGP-4 running on Cisco 7513 Router $15k/month

Spring 2002U.C. Berkeley -- EECS Peering Peered with UUnet for 2 months –NeoSoft had a large webserver, and served out much more traffic than inbound Became member of MAE/Houston MAGE (Metro Area Gigabit Ethernet) via Phonoscope ($4k/month!)

Spring 2002U.C. Berkeley -- EECS Experiences in Peering Many other local providers didn’t have a clue! –INSYNC misconfigured their routes, and traffic would be outbound through MAGE, inbound through random other routes –Often advertised incorrect BGP updates PSInet: Advertised Dial-up ISDN

Spring 2002U.C. Berkeley -- EECS Hops, Multihoming In 1994, the Sprint and MCI handoff was in Chicago –20 hops to next door neighbor –Eventually exchanged in Dallas Experimented with Multihoming (DS3 and T1 to Cable & wireless) –Not too good, BGP administration –Plan was for recovery

Spring 2002U.C. Berkeley -- EECS NeoSoft  Internet America In 1999, Internet America buys NeoSoft for $8M Houston office closes I get laid off 

Spring 2002U.C. Berkeley -- EECS Internet POPs: Two Examples NeoSoft Inc., Houston Texas AMS-IX (Amsterdam)

Spring 2002U.C. Berkeley -- EECS AMS-IX Carrier-neutral peering point Founded in members 565 Tbytes/month AT&T, Akamai, Dynegy, Digital Island, Deutsche Telecom, France Telecom, Global Crossing, UUnet NL, etc

Spring 2002U.C. Berkeley -- EECS Organization

Spring 2002U.C. Berkeley -- EECS

Spring 2002U.C. Berkeley -- EECS

Spring 2002U.C. Berkeley -- EECS How to Join Companies apply for membership after agreeing to numerous policies (sometimes voting is involved) Cost –10baseT = 500,00 euro/month –100baseT = 850,00 euro/month –1000base T = 1200,00 euro/month 1 euro = 0.87 USD (12/26/2002)

Spring 2002U.C. Berkeley -- EECS Computation in the network It makes sense to move servers and content to places of high connectivity By the economics of scale it is cheaper to provide connectivity, power, management, etc to many customers at a central site

Spring 2002U.C. Berkeley -- EECS Example: eXchange Paul Ave location in SF: 350K sq. ft People can rent cabinets, racks, cages In addition to being a data center, also a huge connectivity point

Spring 2002U.C. Berkeley -- EECS Services UPS + generator Office space Climate Control “Meet me” room with carriers and other service providers Professional monitoring Security (hand scanners, guards) Fire control

Spring 2002U.C. Berkeley -- EECS waveExchange Unique facility located across the street from eXchange 20+ carriers Near fiber routes/loops Carriers can meet in “meet me rooms” Service between ASPs, ISPs, CDNs… Opened Nov 2, 2001

Spring 2002U.C. Berkeley -- EECS Tenants of waveExchange AT&T, Cogent, Enron, Level3, PacBell, Qwest, Sigma, Worldcom, Williams Communications, Xo, PAIX, others Network effect Huge connectivity + Highly available services

Spring 2002U.C. Berkeley -- EECS Summary Progression from leased lines to NAPs to peering points gives ISPs options I haven’t even mentioned private peering arrangements Putting computation in the network at the points of connectivity enables new services that can meet demand