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Campus Network Update

Campus Network Update Alan Crosswell alan@columbia.edu Outline A little about Columbia Wide area Internet[2] connections Metro area inter-campus network Main campus network Gigabit Ethernet experience Some network apps (mcast, video, etc.) Outline A little about Columbia

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Campus Network Update

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  1. Campus NetworkUpdate Alan Crosswell alan@columbia.edu NLANR I2 Techs @FIU

  2. Outline • A little about Columbia • Wide area Internet[2] connections • Metro area inter-campus network • Main campus network • Gigabit Ethernet experience • Some network apps (mcast, video, etc.) NLANR I2 Techs @FIU

  3. Outline • A little about Columbia • Wide area Internet[2] connections • Metro area inter-campus network • Main campus network • Gigabit Ethernet experience • Some network apps (mcast, video, etc.) NLANR I2 Techs @FIU

  4. Columbia People • 40K people: • 5,700 CU undergrads • 2,500 non-degree • 12,000 grad students • 3,000 Barnard, TC, UTS students • 7,700 CU faculty • 7,600 staff NLANR I2 Techs @FIU

  5. Columbia Places NLANR I2 Techs @FIU

  6. Columbia Places • Morningside Heights campus - 116/Bway NLANR I2 Techs @FIU

  7. Columbia Places • Morningside Heights campus - 116/Bway • Health Sciences campus - 168/Bway NLANR I2 Techs @FIU

  8. Columbia Places • Morningside Heights campus - 116/Bway • Health Sciences campus - 168/Bway • Lamont-Doherty Earth Observatory - Palisades NLANR I2 Techs @FIU

  9. Columbia Places • Morningside Heights campus - 116/Bway • Health Sciences campus - 168/Bway • Lamont-Doherty Earth Observatory - Palisades • several smaller facilities NLANR I2 Techs @FIU

  10. Outline • A little about Columbia • Wide area Internet[2] connections • Metro area inter-campus network • Main campus network • Gigabit Ethernet experience • Some network apps (mcast, video, etc.) NLANR I2 Techs @FIU

  11. Internet & Internet2 too • DS-3 NYSERNet (Applied Theory) • T-1 UUNet backup • T-1 ESnet • OC-3 NYSERNet 2000 (NN2K) ATM/SONET • vBNS OC-3 out of NYC POP • Abilene OC-3 out of NYC POP • Gemini2000 OC-3 out of NYC POP • PVC mesh among NYS schools NLANR I2 Techs @FIU

  12. NYSERNet 2000 • Fiber along NYS Thruway from NYC to Buffalo • Corporate Partners: • Newbridge • Applied Theory • Funding: • NSF • NY State Science & Tech Foundation NLANR I2 Techs @FIU

  13. NLANR I2 Techs @FIU

  14. Outline • A little about Columbia • Wide area Internet[2] connections • Metro area inter-campus network • Main campus network • Gigabit Ethernet experience • Some network apps (mcast, video, etc.) NLANR I2 Techs @FIU

  15. Metro Network:Lamont-Doherty • DS-3 leased line ATM • T-1 leased line backup NLANR I2 Techs @FIU

  16. Metro Network:Health Sciences • 2 x 100 Mbps Ethernet microwave (23 GHz) • DS-3 ATM microwave • 10 Mbps Ethernet microwave • (NB half vs. full duplex) • See also: Cornell Univ NLANR I2 Techs @FIU

  17. Outline • A little about Columbia • Wide area Internet[2] connections • Metro area inter-campus network • Main campus network • Gigabit Ethernet experience • Some network apps (mcast, video, etc.) NLANR I2 Techs @FIU

  18. MorningsideHeights area • 10 Mbps Ethernet microwave to an off-campus residence hall. • 9 T1s to near-campus buildings. NLANR I2 Techs @FIU

  19. MorningsideHeights ISP • 736 V.90 dialups • 5,700 student and faculty apartments in 143 nearby buildings • Remainder in greater NYC area (10 cent untimed phone call in the 5 boroughs!) NLANR I2 Techs @FIU

  20. Campus Telco • Campus and Neighborhood POTS, CATV, and: • ISDN (~200 users) • DSL (12 beta testers) • copper to switch room • own DSL hub • Cable modems RSN in six apt buildings. NLANR I2 Techs @FIU

  21. 10baseT Ethernet • 17,000 Ethernet ports • 4,400 10baseT pillows in 15 undergrad halls • 500 10baseT in 20 frats • Mostly cat 3 wiring. NLANR I2 Techs @FIU

  22. 100baseT Ethernet • Lab of 72 Ultra-10s • Central server farm • Rewiring of SEAS w/500 cat5 jacks during winter break. • All renovations & new construction are cat 5 (about 6 bldgs) NLANR I2 Techs @FIU

  23. Separately administered School & Dept Nets • Now gigE uplinked: • Astronomy & Physics (cisco) • Chemistry (cisco) • Computer Science (Xylan; almost) • Business (3com) • 100baseFX or FDDI: • Law, Teachers College, Barnard College • Bringing old dept-run nets back into fold. NLANR I2 Techs @FIU

  24. Outline • A little about Columbia • Wide area Internet[2] connections • Metro area inter-campus network • Main campus network • Gigabit Ethernet experience • Some network apps (mcast, video, etc.) NLANR I2 Techs @FIU

  25. GigE Core Network • Centrally funded to upgrade all 10 Mbps shared ports to 10 Mbps switched with a gigabit Ethernet core. • 4 Year $7.7M project (in 2nd year) • Replacing Cabletron and Xyplex shared hubs and FDDI backbone. • Started as an ATM core. And stopped. NLANR I2 Techs @FIU

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  30. GigE Core Network • Installed summer 99 • Core network. • All Residence Halls. • VIP academic & admin bldgs. • Cable prep for all buildings. NLANR I2 Techs @FIU

  31. GigE Core Network • Ongoing now: • Reverting early ATM LANE bldgs to gigE. • Doing another academic/admin bldg every week. • Converting school/dept LAN uplinks from 10 Mbps Ethernet to gigE or 100 Mbps. NLANR I2 Techs @FIU

  32. A Building Hub • Catalyst 5500 (small: 2900/3500) • Singly gigE uplinked to core switch/router • New construction and cat5 renovations puts one of these typically every 3rd floor. • No config changes needed by users. • One or more VLANs with 802.1q trunk • vtp client NLANR I2 Techs @FIU

  33. A Core Router • Catalyst 6509 • MSM router (MSFC upgrades ordered) • Concentrates several building hubs with gigE uplinks. • Dual gigE uplinks to dual core L2 6509s • Dual sups and PS’s w/dual UPS. • vtp client and server NLANR I2 Techs @FIU

  34. A Core Switch • Catalyst 6509 • Two of them at opposite sides of campus • One’s currently on generator power • Eight gigE uplinks from the eight switch/routers • vtp client and server NLANR I2 Techs @FIU

  35. Older Network & Routers • FDDI backbone • ATM OC-3 • 2 x (old) Fore ASX200 (DS-3 & TAXI too) • 4 x LS 1010 • LANE in a bunch of 5500’s • 7507s for WAN, FDDI, ATM • Dual 100baseFX into core (for now) • Various older routers for T1s (IOS 9:-) NLANR I2 Techs @FIU

  36. Routing Protocols • EIGRP • IGRP (incl. ESnet T1) • RIP (w/Fore equip @Lamont) • BGP • vBNS, Abilene, Gemini2000 • NN2K schools • Applied Theory, UUnet NLANR I2 Techs @FIU

  37. Conversion “Issues” • Had to convert right-angle 25pr telco connectors to straight-in! • Had to convert 15A outlets to 20A. • Long vs. short-haul GBICs • Expensive MM to SM conditioning cables. • Fiber testing: Plug and Pray NLANR I2 Techs @FIU

  38. Conversion “Issues” • MSMs vs. MSFCs (ACLs, appletalk routing) • DoS caused by unrestrained fast hosts on a fast network. • Need to RTFM and turn on QoS RSN. • portchannels w/trunking appearing “up” to the router when they aren't. • cost of Smartnet NLANR I2 Techs @FIU

  39. Outline • A little about Columbia • Wide area Internet[2] connections • Metro area inter-campus network • Main campus network • Gigabit Ethernet experience • Some network apps (mcast, video, etc.) NLANR I2 Techs @FIU

  40. Applications • Point to Point Video • H.323 Conferencing • Mbone • Wireless 802.11 NLANR I2 Techs @FIU

  41. Point to Point Video • Dual-campus classes (Biomedical eng.) • ATT/Lucent EMMI mJPEG • OC-3 ATM PVC • DS-3 ATM microwave link • Would like to replace with IP • Users are “spoiled” by high quality video NLANR I2 Techs @FIU

  42. Point to Point Video Options • IPTV w/Optibase full or half D1 card. • Litton (Netaccsys) CAMvision2 • H.323 • suggestions from the audience, please! NLANR I2 Techs @FIU

  43. H.323 conferencing • Participated in the Megaconf • NYSERNet NYC conferencing host site • Zydacron Z340 & COMstation • Intel Proshare 500 • Tandberg Codec 5000/RADvision VIU-323 • Cisco 2511 recycled as MCM gatekeeper • H.320 gateways to be eval’d NLANR I2 Techs @FIU

  44. Multicast Backbone • Attended Shirl’s tutorial in Pittsburgh. • Called Ken T @ MCIW and he told me what to type:-) • CGMP/IGMP snooping on Catalysts • PIM sparse-dense mode on router intfcs • RP is on I2 router (nn2k-gw) • IOS 12.0(6)S: T train doesn’t have mbone support NLANR I2 Techs @FIU

  45. Multicast Backbone • Two conferences so far (earthscape.org) • IPTV 2.0 and Osprey-100 card (H.261) • In parallel with RealProducer G2. • Three-finger salute needed frequently on the NT server running Content Manager. • Getting 3.0 and an Optibase MPEG2 D1. • Still need to peer w/Abilene, NN2K sites. NLANR I2 Techs @FIU

  46. Multicast Backbone • Would rather be using vic and vat/rat on a real operating system. • So many things that use multicast but that don’t work with each other (Real, IPTV, videocharger, Litton, etc.) • Need to learn a lot about video production. NLANR I2 Techs @FIU

  47. Wireless 802.11 (plans) • Playing with CS dept using Wavelan. • 4 x WPII, 20 silver cards ordered. • Outdoor campus spaces. • Roof-to-roof applications for backhoe protection and near-campus buildings. • RF weanie at W2AEE (self:-) who has actually read 47CFR15. NLANR I2 Techs @FIU

  48. To-do List • QoS with WFQ, CAR, WRED, etc. • We’ve gotten as far as knowing the acronyms. • Network Management in our spare time. NLANR I2 Techs @FIU

  49. FIN NLANR I2 Techs @FIU

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