Patent ID: 7292574

Claim:
A system for utilizing a constant bit-rate network including a constant bit-rate, and a variable bit-rate network, the system comprising: a monitor within the variable bit-rate network, operative to determine an available bit-rate of the variable bit-rate network, the monitor including: an accumulator operative to accumulate a size for a packet as a traffic on the variable bit-rate network if the packet crosses the variable bit-rate network; and a subtractor operative to determine the available bit-rate as a difference between a maximum capacity of the variable bit-rate network and the traffic on the variable bit-rate network; and a constant-to-variable cache router, communicatively coupled to the constant bit-rate network and the variable bit-rate network and operative to deliver content from the constant bit-rate network to the variable bit-rate network, the constant-to-variable cache router including a cache to buffer a first data from the constant bit-rate network when the constant bit-rate of the constant bit-rite network exceeds the available bit-rate of the variable bit-rate network.