Network management IEX8175 RF Electronics

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

Densely connected heterogeneous network Modern communication network

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

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

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

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

Traffic engineering –Forward traffic in inverse proportion to path costs –Leads to polynomial-time optimization problems

Policy-based Network Management

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

Is management really that important?

ECONOMY SOCIETY GOVERNMENT POLICY PILOT PROJECTS e-Space SKOOP

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

Elion digital TV DigiTV kliente 48,400 (30. sept 2007) 30 September 2006: 18,400

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