Arrangement for converting ATM cells to infiniband packets

An ATM-InfiniBand™ router is configured for interfacing between an asynchronous transmission mode (ATM) network and an InfiniBand™ network, without a necessity of intermediate transport on a packet based network such as an Internet Protocol (IP) network. The router includes an ATM processor and a host channel adapter. The ATM processor is configured for generating ATM cells streams based on received InfiniBand™ packets, and recovering InfiniBand™ packet data from received ATM cells. The host channel adapter is configured for receiving the InfiniBand™ packets from the InfiniBand network and providing at least the payload data to the ATM processor, and outputting the recovered InfiniBand™ packet data onto the InfiniBand™ network. In addition, the ATM processor and the host channel adapter may be configured for mapping the ATM cells and the InfiniBand packets on prescribed virtual circuits and prescribed InfiniBand™ connections, respectively. Hence, the ATM-InfiniBand™ router operates as a call connection handler, enabling connections to be established across ATM and InfiniBand™ networks.