11
V. Liberatore
Pervasive Computing
Overprovisioning
Access networks
n
Any flow can saturate the network
n
Exacerbated by TCP
Attempt to use all the bandwidth
Core network
n
Good news
Statistical multiplexing
Relatively low rate flows
n
Bad news
Not ready yet for VoIP [MTK02]
Only 50Mbps over-provisioning on half of the paths [ASS03]