On sequence diagrams incoming and outgoing messages (A.K.A. interactions) for a sequence can be modeled by connecting the messages to the border of the frame element (as seen in Figure 2).
The switch looks up the destination MAC address in its switching table, determines the outgoing interface port, and forwards the frame on to its destination through the designated switch port.
交换机在其交换表中查找目标MAC地址,确定交换机出端口,通过该端口将帧转发至目的地。
3
The embodiment of the invention also discloses an outgoing line frame and a communication device.