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Traffic - PowerPoint Presentation

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Uploaded On 2016-07-11

Traffic - PPT Presentation

Management Benchmarking Framework IETF 87 Berlin draftconstantinebmwgtrafficmanagement01 Barry Constantine barryconstantinejdsucom Tim Copley timothycopleylevel3com Ram Krishnan ID: 400195

shaper traffic management draft traffic shaper draft management benchmarking test port shapers active constantine lab include bytes capacity queue

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Presentation Transcript

Slide1

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.comSlide2

Traffic Management Benchmarking Overview

Extends RFC 2544 benchmarking into traffic management functionality of network elements:

Classification / Prioritization

Policing

Queuing / Scheduling

Shaping

AQMSlide3

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 activeSlide4

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,

e

xamples 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) Slide5

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.Slide6

Traffic Shaper Lab Experiments (2)

Same test configuration as first slide, but increased shaper queue

to 131,072 bytesSlide7

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:

I

ncorporate the excellent comments that we received (thanks Al and Reinhard!)

Conduct laboratory testing to verify the core procedure(s)