Patent ID: 6236660
Filing Date: 2001-05-22
Classification: H04J,H04Q

Abstract:
A multiplexer for a synchronous digital hierarchy SDH data transmission system, comprising:a first interface adapted to receive data packets, each data packet being structured in accordance with the Internet Protocol IP and comprising a destination address;a memory in which a routing table is stored having entries regarding a plurality of virtual connections which are established by use of virtual containers VC of the SDH transmission system;an IP routing matrix, connected to said memory and to said first interface, for evaluating the destination address of each data packet and for making a decision, on the basis of said destination address and said routing table, as to which one of the virtual connections shall be used to transmit each data packet;processing means, coupled to an output of said IP routing matrix, for packing each data packet into one of said virtual containers VC which corresponds to the chosen virtual connection; andan SDH second interface, coupled to an output of said processing means, for transmitting said one virtual container (VC), as a subunit of a synchronous transport module STM-N, through the SDH transmission system.