STATE OF THE NETWORK

1
STATE OF THE NETWORK

• Terry Gray
• Director,
• Networks Distributed Computing
• UW Computing Communications
• September 2002

2
Topics

• Scope
• Services
• Stats
• Subnets
• Devices
• Traffic
• P2P/Dorms
• Dialup

• Wireless
• Security
• Monitoring
• Upgrades
• Failures
• Trends
• Priorities

3
Scope of UW Networking

• 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

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 cant handle
• QoS
• Moot on 10Mbps (half-duplex) subnets
• No substitute for adequate provisioning
• Probably use in K20 network first
• IPv6
• Native not yet

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Subnets

• UW Campus 338
• UW Remote 135
• MCIS 52
• MCIS Remote 34
• CC 151
• Backbone 12
• Other 11
  --------
• Total 733

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Devices
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Traffic Backbone
9
Traffic Border

• Sample from yesterday
  AVERAGE MAXIMUMINBOUND 83Mbps
  162MbpsOUTBOUND 223Mbps 400Mbps

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Dialup Users
11
Dialup Use
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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

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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

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Pacific Northwest Gigapop
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PNW Gigapop
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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

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NW Local Exchange Points

• Seattle
• SNNAP/Pacific Wave (500Mbps!) (UW benefit
  200Mbps/ 30K/mo)
• SIX
• PAIX
• Portland
• NWAX

22
PNW-GP Upgrades

• Commodity Internet
• Doubling capacity to 3Gbps
• Three providers Level3, Verio, CW
• Substantial cost reduction!
• Internet2 -NG
• Link upgrades 2.5 -gt 10Gbps
• Gigapop router upgrades Juniper T320

23
Washington K-20 Network
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K-12 Facts
296 School Districts (219 Rural and
Remote) 2000 Buildings 54,180 Classrooms
93,287 Staff and Teachers 1,004,770
Students Served By 500 Total T-1 Circuits to
the District Level (292 Data and 208 Video T-1
Circuits)

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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

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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
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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. Martins College
• Seattle Pacific University
• Gonzaga University
• Walla Walla College

Independent Colleges
15 Sites (in process)
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K20 Network Sites
Public Baccalaureate (50)
Community/Technical College (73)
K-12 (307)
Library (65 in process)
Independent Colleges (9 approved)
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K-20 Intranet Utilization
2400
2000
1600
Billions of Bytes per Day
1200
800
400
0
1999
2000
2001
2002
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Wrap Up...

• Trends
• Priorities
• Questions

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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

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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

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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

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Thanks for your Interest!