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QoR paper for GoSP. J ános Tapolcai , Tibor Cinkler. QoS. Delay Jitter BER Traffic load. QoR. Acceptability. 1-A. A. The service is available. The service is unacceptable. The service is acceptable. Emergency service. The service is unavailable. The service state model.
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QoR paper for GoSP János Tapolcai, Tibor Cinkler NOBEL WP2.1 Meeting, Munich,13thJune 2005
QoS • Delay • Jitter • BER • Traffic load QoR • Acceptability 1-A A The service is available The service is unacceptable The service is acceptable Emergency service The service is unavailable The service state model NOBEL WP2.1 Meeting, Munich,13thJune 2005
0.99324·d(0) tp ti ts tr protection reparation re-route interruption restoration Short QoS degra-dations IP restoration mechanism Reparation by the staff Shared protection mechanism At f(0) the service is acceptable Downtime PDF NOBEL WP2.1 Meeting, Munich,13thJune 2005
A characterisation of the different QoS and QoR parameters QoR QoS User Application layer Principal QoR parameters SLA Codec FEC, CRC Acceptability, Un-acceptability for a Given Time Period, Mean Up Time, Mean Down Time, Mean Time to Repair, Mean Time Between Failures Packet Loss Probability, Jitter, Delay (operational phase) Service Provider e.g.: “IP restoration” Mean Time to Recover, Lost traffic, Mean Time to Repair, Mean Time Between Failures Hop Count, Delay, Traffic Load Service layer negotiated Multiple failures, Cost of recovery, resilience mechanism Cost, Available bandwidth Total physical bandwidth k-connected, Signal propagation delays Physical Resources (planning phase) non- negotiated Transport layer NOBEL WP2.1 Meeting, Munich,13thJune 2005
User A mapping of principal QoR parameters are performed Service SLA: QoS, principal QoR Resources Resources Resources/User Service SLA: QoS, QoR Resources Resources A general hierarchical model of QoR NOBEL WP2.1 Meeting, Munich,13thJune 2005
Emergency Class telemedicine applications Strict QoR Bank transfers, transaction data Conversational Class Video conferencing VoIP Streaming Class Prioritized Elastic Class Streaming media e-mails or ftp traffic Best Effort Class Loose QoR Loose QoS Strict QoS The QoS and QoR requirements of applications NOBEL WP2.1 Meeting, Munich,13thJune 2005
Future work • Finalize the paper for GOSP Workshop 2005 (Broadnets) • These slides can be included in the DRCN Tutorial • Much-More simulation results • Multiple failures • Multilayer architecture • Improve the paper to submit to Infocom NOBEL WP2.1 Meeting, Munich,13thJune 2005