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1 State of the Network 1 May 2007 Computing Support Meeting Terry Gray Assoc VP, Technology & Architecture C&C
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1997 --> 2007
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Recent Changes Expansion, both wired & wireless initiative Router upgrades (Foundry -> Cisco) Core/Backbone: Layer 2 -> Layer 3, 10Gbps Network Information & Security Tool portals (Beta) Spanning Tree deployment (just beginning) Tipping Point & Packeteer upgrades Building & Outside Plant upgrades Metropolitan Ethernet transport system First 10GE connections (HDTV & Imaging)
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Growth... (except for modems!)
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Modem Users -a dying breed
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Devices Seen on Network (adjusted)
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Campus Backbone Traffic >40TB/d
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Perimeter Security Firewalls DIY Logical FWs ( >70 on campus) Managed subnet FWs (new svc, using Cisco FWSMs) P172 (private addresses plus NAT) IDS/IPS Tipping Points Homebrew, based on Netflow data Dark net monitoring Also, supporting host security: Vulnerability scanning Managed host service (Nebula) Security tools portal UW Policies: computer & data security standards
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Trends... Growth continues (speed, capacity) Higher availability expectations More wireless/mobility More convergence (e.g. VoIP, video) More TDAs (Traffic Disruption Appliances) More “gated communities” (aka “Balkanization”) Backlash/Consequences Complexity/MTTR challenges –harder to diagnose More tunneling & encryption FutureNet = local nets linked together by Port 443 More “personal lambda” & “bypass” nets More SSL VPNs to get around security
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Immediate Focus Areas Wireless Initiative, year 3 (remaining 40%) Stability: router upgrades, spanning tree Improving diagnostic & management capability Self-service tools Improved security visibility and reporting Next-Gen network requirements gathering
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Future Needs / Requests More and fewer security/admin perimeters Abandoning traditional geographic topologies More/faster wireless; 802.11n, UWB, etc Building upgrades (40-50 need it) More visibility into traffic, incl. trend analysis Perimeter defense bypass MAC Registration (at least wireless) Network Admission Control (wired) Traffic shaping, by application Separate and/or faster nets Jumbo Frames Dynamic DNS IPv6
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Questions/Comments At the break.... or via email: gray@washington.edu
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13 Wireless Deployment Seattle Campus only (excluding Auxiliaries) Sept. 2005 – Present ~3.43m Additional ASF covered Total Seattle Main covered ~4.45m ASF 56 Additional buildings fully covered Also numerous partial deployments 3 Major Outdoor Areas HUB Lawn, Quad, Red Square 2573 Access Points installed Total APs Seattle Main only ~2945 Total APs All areas ~3360 193 General Assignment Classrooms (8751 seats) Overall GAC covered - 266 of 327 total, or 82% ~ 248 Departmental Classrooms (~7721 seats) 12 Department/Branch Libraries Seattle
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