This document discusses storage networking protocols and converged data centers. It provides an overview of iSCSI, which transports SCSI over TCP/IP, allowing more flexible connectivity than Fibre Channel. Fibre Channel over Ethernet (FCoE) is also summarized, which encapsulates Fibre Channel frames in Ethernet to leverage Ethernet infrastructure for storage. Lossless Ethernet technologies like Data Center Bridging are required to support FCoE reliability. The document discusses how these protocols support server virtualization through virtual HBAs and NICs that present block storage to virtual machines over the virtual switch.