This figure uses a series of shaded and labeled boxes to illustrate a flow table. The boxes are positioned horizontally and appear side-by-side. From the left, the first box is dark blue and labeled "Ingress Port." The next five boxes, representing the Link Layer, are light blue and individually labeled. They read (left to right): Src MAC, Dst MAC, Eth Type, VLAN ID, VLAN Pri." The next four boxes, representing the Network Layer, are a medium shade of blue and individually labeled as: IP Src, IP Dst, IP Proto, TOS. The last two boxes, representing the Transport Layer, are a more vivid shade of blue and are individually labeled as: TCP Src Port, RCP/UDP Dst Port.