9
V. Liberatore
Pervasive Computing
Overprovisioning
Over-provisioning
nLarge bandwidth implies short queues
n1Gbps Ethernet vs. 1Mbps CAN
nUseful for probabilistic QoS
Risk
nCongestion caused by even one cross-traffic flow
nTCP tends to take over
nExample: ping a machine in same building with and without one FTP flow as cross-traffic
nExplains poor plant performance with one flow
