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STATE OF THE NETWORK

STATE OF THE NETWORK. Terry Gray Director, Networks & Distributed Computing UW Computing & Communications September 2002. Scope Services Stats Subnets Devices Traffic P2P/Dorms Dialup. Wireless Security Monitoring Upgrades Failures Trends Priorities. Topics. Campuses

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STATE OF THE NETWORK

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  1. STATE OF THE NETWORK Terry Gray Director, Networks & Distributed Computing UW Computing & Communications September 2002

  2. Scope Services Stats Subnets Devices Traffic P2P/Dorms Dialup Wireless Security Monitoring Upgrades Failures Trends Priorities Topics

  3. Campuses UW-Seattle UW-Bothell UW-Tacoma Medical Centers UW Physicians Network UW Medical Center Harborview Medical Ctr MyUW.net Service PNW Gigapop Peering / Exchange(Local, National, International) Transit(Regional, Commodity, Internet2, PLR/NLR) K20 Network K12 2yr colleges 4yr colleges Libraries Scope of UW Networking

  4. Baseline Services • Shared 10Mbps HD • Switched 10Mbps HD • Switched 10/100Mbps FD • backed by GE switch/router infrastructure • Goal: Switched 10/100 FD for all; GE as needed • Reality: Cat3 wireplant upgrade will take multiple years and multiple millions of dollars

  5. Advanced Services • Multicast • Harder than it looks • Enabled on ~ 200 subnets • Older routers/switches can’t handle • QoS • Moot on 10Mbps (half-duplex) subnets • No substitute for adequate provisioning • Probably use in K20 network first • IPv6 • Native: not yet

  6. Subnets • UW Campus 338 • UW Remote 135 • MCIS 52 • MCIS Remote 34 • C&C 151 • Backbone 12 • Other 11 -------- • Total 733

  7. Devices

  8. Traffic: Backbone

  9. Traffic: Border • Sample from yesterday: AVERAGE MAXIMUMINBOUND: 83Mbps 162MbpsOUTBOUND: 223Mbps 400Mbps

  10. Dialup Users

  11. Dialup Use

  12. P2P and ResHall Traffic • Traffic levels out of control • Dramatic increase this year • Violation of existing server policy • Substantial cost implications • Cause: P2P music/video sharing • Solution: Packeteer bandwidth manager

  13. Wireless • Pilot successful • DIY secure WAPs? • 802.11g just approved • 802.11a affordable

  14. Security • Logical Firewalls: success stories • Evaluating other subnet options • Secure server sanctuaries • Host-based firewalls • Protecting the network devices

  15. Network Monitoring • For diagnosis, capacity planning, accounting • HP OpenView upgrade • Asta product: top-talkers • Homebrew tools, e.g. • netflow graphing • port-based accounting • Layer2 device monitoring • automatic database synchronizer • Still need better “Finger Pointing Tools”

  16. UW Network Upgrades • DHCP servers • New hardware • New software: better failover • Longer leases: better stability • Evaluating replacement routers • Foundry and Cisco • Dialup • V.92/V.44 support • RADIUS authentication

  17. Ouch: some failures • A few partial backbone switch failures • Masked by redundant backbones • Excessive errors on optical interface • Impact: intermittent application failures • Action: improved monitoring tools

  18. Pacific Northwest Gigapop

  19. PNW Gigapop

  20. PNW Gigapop Services • Peering / Exchange • Local (e.g. ATTBI, Microsoft) • National (e.g. ESnet, DREN) • International (Canada, Taiwan, Australia) • Transit • Regional (Intra-Gigapop) • Commodity Internet • Internet2 (Abilene) • PLR/NLR

  21. Seattle SNNAP/Pacific Wave (500Mbps!) (UW benefit: 200Mbps/ $30K/mo) SIX PAIX Portland NWAX NW Local Exchange Points

  22. Commodity Internet Doubling capacity to 3Gbps Three providers: Level3, Verio, C&W Substantial cost reduction! Internet2 -NG Link upgrades: 2.5 -> 10Gbps Gigapop router upgrades: Juniper T320 PNW-GP Upgrades

  23. Washington K-20 Network

  24. K-12 Facts 296 School Districts (219 Rural and Remote) 2000+ Buildings 54,180 Classrooms 93,287 Staff andTeachers 1,004,770 Students Served By: 500 Total T-1 Circuits to the District Level (292 Data and 208 Video T-1 Circuits)

  25. K-12 Technology Survey Results • 95% of K-12 classrooms wired for Internet/K-20 access • 260,000 instructional computers (of all types) in K-12 • Fewer than 57% of the computers meet min. standards • 3,432 students enrolled in on-line classes (2000-2001) • 76, 098 students have school-provided e-mail accounts • Predominant uses of computers by students: • Word processing • Web research • Also: Instructional software or drill and practice

  26. 307 Sites Public Education Sectors 430 Connected K-20 Sites • UW • WSU • Central • Eastern • Western • Evergreen • Selected Remote Campuses • Higher Education Coordinating Board Baccalaureates 50 Sites • All Community and Technical Colleges • Selected Remote Campuses • State Board for Community and Technical Colleges Community and Technical Colleges 73 Sites • Public School Districts • Educational Service Districts • Schools for Deaf and Blind • Office of Superintendent of Public Instruction K-12

  27. New K-20 Sectors • All Public Library Systems Public Library Systems 65 Sites (in process) 9 Colleges Currently Approved: • Seattle University • Whitman College • Heritage College • Whitworth College • Pacific Lutheran University • St. Martin’s College • Seattle Pacific University • Gonzaga University • Walla Walla College Independent Colleges 15 Sites (in process)

  28. K20 Network Sites Public Baccalaureate (50) Community/Technical College (73) K-12 (307) Library (65 in process) Independent Colleges (9 approved) 28

  29. J J J F F F M M M A A A M M M J J J J J J A A A S S S O O O N N N D D D J F M A M J K-20 Intranet Utilization 2400 2000 1600 Billions of Bytes per Day 1200 800 400 0 1999 2000 2001 2002

  30. Wrap Up... • Trends • Priorities • Questions

  31. Surprise: Explosive Growth Continues • More users (except dialup) • More devices • Longer use • New (bandwidth-intensive) applications • e.g. remote collaboration tools • audio/video streaming • tele-immersion • distance learning

  32. Priorities • Campus: • Router & building subnet upgrades • Network hardening • More host security options • Better diagnostic tools • Gigapop: • 10Gbps infrastructure • PLR/NLR • K20 • Expansion • New circuit providers • Combining voice/video/data

  33. Questions? Or... Other Stuff we could talk about: • Spam Storms and other ill-winds • Pine: 25 million users served! • WebPine Lite: coming soon • Nebula: nearly 2,000 desktops managed • Survival in the telecom industry • Digital Rights Management • A 7-point plan for Windows security

  34. Thanks for your Interest!

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