Performance Ad Hoc Modeling Definition Simulation Platform RPR function definition Simulation Platform Simulation framework Reference network: compare different simulators Traffic Profile As specified in Khaled’s charts Packet size distribution Packet arrival distribution Flow pattern: hub and meshed Transport protocol Service models L2 Protection interaction Congestion handling Metrics As specified in Khaled’s charts End to end delay Jitter goodput Harry Peng

Compare Apples with Apples Define the MAC layer functions Compare the performance of the different proposals Simulate in controlled environment Same Header Same ingress and egress functions Traffic management (TM): buffer management and scheduling packet processing (PP): header processing Same customer traffic rate Same ring rate Same network topology Harry Peng

Simulation Modules/Harness Link Metric Monitors Link Metric Monitors DUT To/From Next node RPR MAC Ring_1 Ring_1 To/From Next node Phy Phy Ring_2 Ring_2 Drop Add TM+PP Ingress/ Egress Customer traffic I/F Harness Traffic Generator/ Sink Common harness different device under test Harry Peng

L2 Congestion/Fairness Proposals “Fairness” Method MAC Proponent Tool Sponsor 1 Queue at every node ? Luminous NS2 2 Local fairness with span head control: class Cut-through Nortel Opnet 3 Local fairness with local control SaF Cisco 4 Central BW broker Dynarc 5 Local fairness with BW manager per customer Fujitsu 6 “BW” manager Lantern This is a snap shot: and my understanding only. Presumably each proponent will do their simulation. Harry Peng

L2 Protection 1 Wrap Cisco With L3 control 2 Source re-direct LuminousNortel Dynarc Fujitsu L2 3 ? Lantern Harry Peng

L2 Node Discovery Performance etc efficiency Fault tolerance Plug and play etc Harry Peng