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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 l.jpg

Campus NetworkUpdate

Alan Crosswell

alan@columbia.edu

NLANR I2 Techs @FIU


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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


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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


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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


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Columbia Places

NLANR I2 Techs @FIU


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Columbia Places

  • Morningside Heights campus - 116/Bway

NLANR I2 Techs @FIU


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Columbia Places

  • Morningside Heights campus - 116/Bway

  • Health Sciences campus - 168/Bway

NLANR I2 Techs @FIU


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Columbia Places

  • Morningside Heights campus - 116/Bway

  • Health Sciences campus - 168/Bway

  • Lamont-Doherty Earth Observatory - Palisades

NLANR I2 Techs @FIU


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Columbia Places

  • Morningside Heights campus - 116/Bway

  • Health Sciences campus - 168/Bway

  • Lamont-Doherty Earth Observatory - Palisades

  • several smaller facilities

NLANR I2 Techs @FIU


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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


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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


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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


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NLANR I2 Techs @FIU


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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


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Metro Network:Lamont-Doherty

  • DS-3 leased line ATM

  • T-1 leased line backup

NLANR I2 Techs @FIU


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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


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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


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MorningsideHeights area

  • 10 Mbps Ethernet microwave to an off-campus residence hall.

  • 9 T1s to near-campus buildings.

NLANR I2 Techs @FIU


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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


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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


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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


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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


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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


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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


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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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NLANR I2 Techs @FIU


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NLANR I2 Techs @FIU


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NLANR I2 Techs @FIU


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NLANR I2 Techs @FIU


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GigE Core Network

  • Installed summer 99

  • Core network.

  • All Residence Halls.

  • VIP academic & admin bldgs.

  • Cable prep for all buildings.

NLANR I2 Techs @FIU


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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


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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


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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


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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


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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


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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


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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


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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


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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


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Applications

  • Point to Point Video

  • H.323 Conferencing

  • Mbone

  • Wireless 802.11

NLANR I2 Techs @FIU


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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


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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


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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


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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


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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


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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


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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


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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


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FIN

NLANR I2 Techs @FIU


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