Up to some years ago, hardware timestamps were available only on costly FPGA-based NICs. Slowly, NIC manufactures started to consider hw timestamps as an important feature, and they started to introduce them in new cards. As of today Silicom PE2Gi80, Intel 1 Gbit Ethernet Server Adapter i340 (1 Gbit) and Neterion X3110/X3120 (10 Gbit) offer off-the-shelf hardware timestamps. These cards do not fea
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