Over-provisioning – at what cost?
Aggregate bandwidth overprovision comes at a cost, however:
e.g. 150Mbps of VoIP and 1.5Gbps of data between two POPs
=> 1.65Gbps of aggregate load
=> requires 3.3Gbps of bandwidth for 2x over-provisioning
=> typically provisioned using 2x STM16/OC48
=> hence 5Gbps of bandwidth used to support 1.65Gbps aggregate load with 150Mbps of low delay, low jitter, low loss traffic