BCM5709S

Description

The BCM5709S provides a fully integrated dual-port Layer 4 and Layer 5 solution -TCP/IP, RDMA, and iSCSI along with a complete 1000/2500BASE-X Gigabit Ethernet, IEEE 802.3-compliant media access control (MAC), and physical layer transceiver solution for highperformance network applications. By itself, the BCM5709S provides a complete single-chip dual-port Gigabit Ethernet NIC with a TCP/IP processing engine, RDMA NIC (RNIC), iSCSI HBA, or LOM solution.

The BCM5709S is different from other network controllers because it can process the TCP/IP and relevant L5 protocols on data directly from the application buffers on the host, thereby relieving the host CPU from these time-consuming operations. On the receive path, the BCM5709S processes the frame up to the highest layer supported present in it. For example, the BCM5709S processes the frame for RDMA when the frame is an RDMA frame.