Multimedia need more bandwidth - may internet collapse?

Only summary form given. The paper covers new requirements on bandwidths in new multimedia services over IP networks with the mixture of transmission technologies. With the exponentially growing traffic volume current network infrastructure is not designed to fulfill those requirements. Internet may not withstands expectations due to visible bottlenecks in access and switching areas. It is presented how the infrastructure should be changed to overcome those weaknesses. It is shown that the possible solution is optical switching.