University of Washington Computing & Communications

CAMPUS NETWORK STATUS/FUTURES

Terry GrayDirector,

Networks & Distributed ComputingUW Computing & Communications

October 2001

University of Washington Computing & Communications

Scope of UW Networking• UW Campus Networks

– Seattle– Tacoma– Bothell/CCC

• Medical Centers (net design)– UW Physicians Network– UW Medical Center– Harborview Medical Center

• Pacific/NorthWest Gigapop– Pacific Wave exchange point– Pacific Light Rail

• Statewide K20 Network

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Pacific Northwest Gigapop

University of Washington Computing & Communications

Baseline Connectivity

• Shared 10Mbps HD

• Switched 10Mbps HD

• Switched 10/100Mbps FD– backed by GE switch/router infrastructure

• Goal: Switched 10/100 FD for all; GE for a few

• Reality: Cat3 wireplant upgrade will take multiple years and multiple millions of dollars

University of Washington Computing & Communications

Advanced Services• Multicast

– Partially deployed– Older routers need to be replaced

• QoS– Laissez faire? Premium service?– Best with FD connections.

• VoIP– Needs QoS, extra-high availability– POE desirable; implies UPS in closets

• IPv6

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Premium Services?

• Wide-area QoS chargeback?

• Preferred access to Internet for a fee?

• Lots of interesting policy and tech issues...

University of Washington Computing & Communications

Mistakes We Didn't Make

• FDDI to the desk• VLANs• ATM• Various "cut-thru IP switching" digressions

• Claim: Staying with pure IP and Ethernet has served UW very well...

University of Washington Computing & Communications

Current Statistics• Avg Backbone traffic: nearly 2 TB/day• Peak Inbound traffic: 100 Mbps (40 in 1999)• Peak Outbound traffic: 160 Mbps (20 in 1999)• Doubling time: Less than 2 years!!• Hosts: over 50,000• Modems: over 2,000• Switched subnets: 70% (30% in 1999)• 10/100 FD subnets: 25% (5% in 1999)• Cat 5 buildings: 10%

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UW-S Building/Subnet Status

Depts Dorms UWMC TOTAL

Buildings 173 10 9+2 193 Cat 3 163 6 (1/3) 175 Cat 5 10 4 (1/3) 18

Subnets 239 37 34 310

10Mbps 73 0 12 85 100Mbps 187 24 10 1311000Mbps 59 13 12 84

University of Washington Computing & Communications

Dept’l GigE Buildings

• Physics/Astronomy (6)• Fisheries Center (2)• new Ocean (3)• Parrington Hall (1)• HecEd + Graves (2)• Mary Gates Hall (10)• OUG Library (3)• Savery (1)• Sieg (8)• 4545 (5)

• part of EE (2)• Part of HS J wing (1)• part of HS K wing (2)• part of HS T wing (1)• part of Johnson Hall (3)• part of Gerberding (1)• part of Thomson Hall (1)• Bowman (1)• Robertson Annex (1)

University of Washington Computing & Communications

Simplified Network Topology

Router Router

BorderRouter

CoreSwitch

EdgeSwitch

Edge Switch

InteriorSwitch

InteriorSwitch

Gigapop Internet2

DesktopDesktop

Internet

Fed Nets4

30

300

1000+Branch Site

50,000

PBX

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University of Washington Computing & Communications

Number of Devices

University of Washington Computing & Communications

Backbone Traffic

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Border Traffic 1999 (2 day)

University of Washington Computing & Communications

Border Traffic 2001 (2 day)

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Border Traffic 2001 (6 hour)

University of Washington Computing & Communications

Recurring Theme: Explosive Growth

• More users• More devices• Longer use• New (bandwidth-intensive) applications

– e.g. remote collaboration tools– audio/video streaming– tele-immersion– distance learning

University of Washington Computing & Communications

Networking Hot List• Campus building/subnet upgrades• Backbone upgrades (production, experimental)• Regional networking• Internet 2• Network Hardening• Security• Advanced Services• Wireless• Management/diagnostic tools

University of Washington Computing & Communications

Some Success Metrics

• 10/100 FD connections: xx%

• Multicast deployment: xx%

• QoS deployment: xx%

• Dept’l wireless coverage: xx%

• Router center hardening: xx%

• Backbone capacity

• IPv6 capable routers

University of Washington Computing & Communications

Questions?

• Or comments…– Or complaints...