>> for those who say bufferbloat is a problem, do you have wred enabled >> on backbone or customer links? > > For *most backbone networks* it is a no-op on the backbone. To be > more precise, if the backbone is at least 10x, and preferably more > like 50x faster than the largest single TCP flow from any customer > it will be nearly impossible to measure the performance difference > between a short FIFO queue and a WRED queue.
when a line card is designed to buffer the b*d of a trans-pac 40g, the oddities on an intra-pop link have been observed to spike to multiple seconds. > To the customer, absolutely, whenever possible, which generally means > when the hardware supports. Ideally with the queue length tuned to > match the link speed of the customer port. The slower speed the > customer port the more critical the tuning. so, do you have wred enabled anywhere? who actually has it enabled? (embarrassed to say, but to set an honest example, i do not believe iij does) randy
