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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 managementIEX8175 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
Good network graph topologies • Good for benign scenarios • Mostly circulant graphs • Only few Moore graphs actually exist.
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
Measure, Model, and Control Network Management Models, tools, scripts, databases Knobs Dials Offered traffic Changes to the network Topology/ Configuration measure control Operational network
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
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
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
e-Space ECONOMY PILOT PROJECTS POLICY SOCIETY GOVERNMENT SKOOP
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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