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QoS Appliances: Disease or Cure?

NLANR/Internet2 Techs Workshop - Tempe, AZ
Monday, January 28, 2002

To manage congested access circuits, some Internet2 members have turned to special purpose middleboxes that are often deployed at the campus edge. Related to firewalls, these "QoS appliances" support a range of functionality, including: application classification, DSCP marking, shaping, differentiated queuing, and TCP window size spoofing. To date the QoS working group has not addressed the implications or capabilities of these devices. This session includes a survey and taxonomy of QoS appliance capabilities, several experience talks from campus network operators, "pro" and "con" outrageous opinion talks, and a brief panel discussion.

An open follow-up meeting of the Internet2 QoS working group was held at 8PM Tuesday evening to discuss next-steps.

Joint Techs Plenary Session

• Welcome and agenda overview (Ben Teitelbaum - Internet2)
• Taxonomy and Survey of QoS Appliances (Craig Pepmiller - MOREnet)
• Using Using Packet Shapers to control UC Berkeley I$P Costs (Ken Lindahl - UC Berkeley)
• Allot Net Enforcer (Jim Warner - UC Santa Cruz)
• QoS Appliances Cause Cancer and Global Warming (Dave Hartzell and Stanislav Shalunov)
• The Case for Traffic Shaping At Internet2 Schools (Joe St. Sauver - U Oregon)
• Panel discussion and questions from audience (all speakers)

QoS Working Group Follow-Up

• Raw minutes are available

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