I've posted "Flow Rate Fairness: Dismantling a Religion" <draft-briscoe-tsvarea-fair-00.pdf> to internet drafts. It explains my strong concerns about the way fairness is thought about in the Internet Community. I show a proper basis for fairness would lead to allocations orders of magnitude different from the ones we currently have. I said this during the standardisation of DCCP, but it needed a much fuller treatment for people to realise why the whole religion is broken.
There is a section discussing fairness in TFRC relative to TCP, as an illustration of the incorrect way fairness has been defined. But I make it clear that this TFRC vs TCP problem is minor compared to the problems with all forms of fairness based on instantaneous flow rates (applying equally to TCP and TFRC).
I shall be presenting this in TSV-AREA at IETF-67 in San Diego on Mon eve next week.
Bob
Notice: This contribution is the personal view of the author and does not necessarily reflect the technical nor commercial direction of BT plc.
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Bob Briscoe, Networks Research Centre, BT Research
B54/77 Adastral Park,Martlesham Heath,Ipswich,IP5 3RE,UK. +44 1473 645196
