Verifiable Network-Performance Measurements - Computer Science > Networking and Internet ArchitectureReport as inadecuate

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Abstract: In the current Internet, there is no clean way for affected parties to reactto poor forwarding performance: when a domain violates its Service LevelAgreement SLA with a contractual partner, the partner must resort to ad-hocprobing-based monitoring to determine the existence and extent of theviolation. Instead, we propose a new, systematic approach to the problem offorwarding-performance verification. Our mechanism relies on voluntaryreporting, allowing each domain to disclose its loss and delay performance toits neighbors; it does not disclose any information regarding the participatingdomains- topology or routing policies beyond what is already publiclyavailable. Most importantly, it enables verifiable performance measurements,i.e., domains cannot abuse it to significantly exaggerate their performance.Finally, our mechanism is tunable, allowing each participating domain todetermine how many resources to devote to it independently i.e., without anyinter-domain coordination, exposing a controllable trade-off betweenperformance-verification quality and resource consumption. Our mechanism comesat the cost of deploying modest functionality at the participating domains-border routers; we show that it requires reasonable processing and memoryresources within modern network capabilities.

Author: Katerina Argyraki, Petros Maniatis, Ankit Singla


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