The BCM5706 provides a fully integrated Layer 4 and Layer 5 solution- TCP/IP, RDMA and iSCSI 1.0/iSER along with a complete 10/100/1000BASE-T Gigabit Ethernet, IEEE 802.3 compliant Media AccessControl (MAC) and Physical Layer Transceiver solution for highperformance network applications. By itself the BCM5706 provides acomplete single-chip Gigabit Ethernet NIC with a TCP/IP OffloadEngine, RDMA NIC (RNIC), iSCSI 1.0/iSER HBA or LOM solution.The BCM5706 is different from other network controllers because it canprocess the TCP/IP and relevant L5 protocols on data directly from theapplication buffers on the host, therefore relieving the host CPU fromthese time-consuming operations. On the receive path, the BCM5706processes the frame up to the highest layer supported present in it, e.g.,the BCM5706 processes the frame for RDMA when the frame is anRDMA frame.
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