Allocated Capacity for TCP Bulk Transfers
Service allocation profile: provides a specific (target) average throughput to anywhere with a range of RTTs
Provisioning: sum of all service allocation profiles sold to customers does not exceed the link speed
Want TCP to oscillate between 0.66 and 1.33 of target rate, in fast recovery (not slow start)
Twin RED algorithms, one for “in” and one for “out”
Discriminates against “out” packets during congestion
min threshold for “out” is smaller than that of “in”
maxP for “out” is higher than that of “in”
max threshold for “out” is smaller than that of “in”
For an arriving “out” packet, use total avg queue length
In a well-provisioned network, “in” packets are never dropped