Patent ID: 7065088

Claim:
An asynchronous transfer mode switch comprising: a connection establishing section for establishing a connection according to a predetermined transfer establishing request prior to a transfer of cells; a rate extracting section for extracting a transfer rate contained in said predetermined transfer establishing request as a declared rate; a transfer attribute extracting section for extracting an attribute indicating a type of transfer contained in said predetermined transfer establishing request; a plurality of queues for accumulating said cells; a data forwarding section having forwarding rates corresponding to said queues and being different from each other, said data forwarding section forwarding said cells so as for forwarding rates of said cells being forwarded from said queues not to exceed the forwarding rates of corresponding ones of said queues; a queue assigning section for assigning one of said queues having a very close forwarding rate not exceeding said declared rate in accordance with said attribute; and a switch section for transferring said flown-in cells to said one of said queues assigned by said queue assigning section.