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Traffic Management Benchmarking Framework IETF 87 Berlin

Traffic Management Benchmarking Framework IETF 87 Berlin draft-constantine-bmwg-traffic-management-01 Barry Constantine barry.constantine@jdsu.com Tim Copley timothy.copley@level3.com Ram Krishnan ramk@brocade.com. Traffic Management Benchmarking Overview.

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Traffic Management Benchmarking Framework IETF 87 Berlin

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  1. Traffic Management Benchmarking Framework IETF 87 Berlin draft-constantine-bmwg-traffic-management-01 Barry Constantine barry.constantine@jdsu.com Tim Copley timothy.copley@level3.com Ram Krishnan ramk@brocade.com

  2. Traffic Management Benchmarking Overview • Extends RFC 2544 benchmarking into traffic management functionality of network elements: • Classification / Prioritization • Policing • Queuing / Scheduling • Shaping • AQM

  3. Revisions Incorporated into Draft-01 • This revision primarily augmented the verification focus of the first draft by adding capacity benchmarking for each traffic management area • An example would include the area of traffic shapers; the capacity benchmarking section specifies various combinations of stress test including: • Single shaper per port, all ports active • Multiple shapers per port, single port active • Combination of the first two; multiple shapers per port and all ports active

  4. Other Status on this Draft • In addition to stateless traffic tests, the draft proposes TCP stateful traffic (“TCP Test Patterns”) to emulate application traffic behavior • In addition to bulk file transfers, examples include HTTP web browsing, data base transactions, etc. which are chatty by nature • We researched and experimented with Flowgrind and Harpoon open source tools to study emulation techniques • Conducted some basic traffic shaper and policer lab tests to study vendor behavior and developed test scripts to analyze packet capture files (next slides)

  5. Traffic Shaper Lab Experiments (1) • This is the output of a vendor’s traffic shaper, configured for a CIR of 40 Mbps, 20KB CBS and shaper default queue size of 64,000 bytes. • Ingress Layer 2 traffic was configured for 128 KB bursts / 128 byte packets.

  6. Traffic Shaper Lab Experiments (2) • Same test configuration as first slide, but increased shaper queue to 131,072 bytes

  7. Next Steps for the Traffic Management Draft • We seek the BMWG to formally adopt this personal submission as a chartered draft work • Work on the next revision(s) to: • Incorporate the excellent comments that we received (thanks Al and Reinhard!) • Conduct laboratory testing to verify the core procedure(s)

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