Subject: Fair Queueing as panacea

From: "Srinivasan Keshav" <[email-masked]>
Date: Mon, 8 Apr 1996 18:04:27 +0400

Juha, Curtis, and others have proposed that fair queueing (or some
variant) is sufficient to provide a 'good-enough' quality
of service (re: Zheng's complaint about the US-UK link). 
While I would be the last to disparage fair queueing ;-)
I think that fair queueing attempts _one_ possible resource
allocation, that is, max-min fair. I believe that other 
allocations, depending on pricing, are necessary.  Unfortunately, 
this means we need WFQ, and I view the weights in WFQ 
as a sort of reservation (one needs to somehow restrict the
sum of the weights in order to provide bandwidth bounds, making them
a 'resource'). So, fair queueing is not the whole solution, and it
certainly does not do away with the need for some form of resource
reservation. 

keshav