Topics Covered

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List of questions related to each discussion topic
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Topic 1: Workload Characterization:
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What are the statistical characteristics of measured traffic: Long-range dependence, heavy-tailed distributions?
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What assumptions are made now based on traditional models? Are these assumptions significantly misleading?
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Is network dimensioning practiced as a black art?
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How can providers get useful analysis from researchers and academics?
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How should funding agencies direct funding in useful directions, and maximize cooperation between providers and researchers?
Topic 2: Measurement Infrastructure:
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What measurement capabilities exist now in switches and routers?
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What traffic trace data exists? How widely available is it?
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What traffic analyses have been published? How useful are they?
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Are ISPs cooperating with measurement efforts?
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Are ISPs conducting their own measurements?
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What are standards requirements for routers and switches?
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What's happening in the IETF Internet Provider Performance Metrics (IPPM) group?
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What's happening in the IETF Benchmarking working group (BMWG)?
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What other related standards activity exists?
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Large-scale topology engineering; using imperfect measurements to do realistic and reasonable traffic management.
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Who is promoting independent assessment of ISP performance?
Topic 3: Flow Characterization and Control:
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How is the TCP/IP flow duration distribution changing? What impact?
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How is the TCP/IP route locality distribution changing? What impact?
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Effect of web (short-lived) traffic and MBONE (heavy) traffic.
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Interaction among providers in response to new applications.
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Effect of high aggregation, large number of small flows.
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What is happening in the trans-Atlantic links w.r.t. TCP connection startup and efficiency? (Lothberg, Claffy, Paxson may know.)
Topic 4: Internet Scaling:
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What changes technically as network gets very large?
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Is better reliability the necessary consequence of the Internet getting bigger?
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How do ISPs control their networks? How would telephone companies do it under their business/technical models?
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Which differences are implied by scale, which by local precedent, culture/history?
Topic 5: Quality of Service and More Complex Pricing:
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Does a more complex QoS model imply a more complex pricing model?
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TCP/IP congestion control operates at the edges. How does provider take responsibility for quality/reliability of its network?
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Link sharing concept; prospects for practice?
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Issues of measurement related to billing.
Topic 6: Privacy and Security:
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What is current practice and capability in deployed technology?
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What interesting tools are available and used?
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Examples of recent security-comprimising events.
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What are the outstanding hard problems?
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What information is sensitive for providers?
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What are legal restrictions?
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How do regulations of phone network and internet differ?
Topic 7: Cooperation:
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The continuing role of the Federal Government as Internet shepherd.
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Market competition and competetitors: how do they cooperate?
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One-on-one relationships vs. activities en mass (such as this workshop).
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Cooperation between providers and researchers.
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Cooperation and interaction across national boundaries; other governments?
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Creation of further focused workshops and meetings.
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What other mechanisms?
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Can we use technical input here to generate a list of the most important technical problems for NSF to pursue.
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Establish concrete action items to take home.
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Outline workshop report; identify value.
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