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Network management IEX8175 RF Electronics

Network management IEX8175 RF Electronics. avo.ots@ttu.ee avots@lr.ttu.ee. DARPA ISAT. Beyond traditional "tactical" which is voice/human user oriented High reliability delivery Beyond traditional ad-hoc networks. Modern communication network. Densely connected heterogeneous network.

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Network management IEX8175 RF Electronics

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  1. Network managementIEX8175 RF Electronics avo.ots@ttu.ee avots@lr.ttu.ee

  2. DARPA ISAT • Beyond traditional "tactical" which is voice/human user oriented • High reliability delivery • Beyond traditional ad-hoc networks

  3. Modern communication network Densely connected heterogeneous network

  4. Good network graph topologies • Good for benign scenarios • Mostly circulant graphs • Only few Moore graphs actually exist.

  5. Robust Dynamic Network (space-ground) robust networks Capability currentnetworks Stress level Security architecture for all layers and across-layers Architecture good for multiple generations of technologies

  6. Measure, Model, and Control Network Management Models, tools, scripts, databases Knobs Dials Offered traffic Changes to the network Topology/ Configuration measure control Operational network

  7. Algorithm For Setting the Knobs • Random Early Detection (RED) • Several tunable parameters • Min and max thresholds on queue length, max probability, queue weight Probability Average Queue Length

  8. Traffic engineering • Forward traffic in inverse proportion to path costs • Leads to polynomial-time optimization problems 2 1 3 1 3 2 1 5 4 3

  9. Policy-based Network Management

  10. Architecure • QoS service is provided through a policy server • The edge routers consult the policy server to perform admission control • The core routers accept resource configurations from the policy server to implement QoS requirements

  11. Is management really that important?

  12. e-Space ECONOMY PILOT PROJECTS POLICY SOCIETY GOVERNMENT SKOOP

  13. Elioni view Elioni käes 56% turust (30.sept.2007)

  14. Elion digital TV DigiTV kliente48,400 (30. sept 2007) 30 September 2006:18,400

  15. Lingid http://www.gfi.com/landing/nsmnw.asp?adv=69&loc=83&adclickid=15114702 http://www.rawflow.com/ http://www.cs.ucl.ac.uk/staff/M.Handley/papers/fragmentation.pdf

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