In {HEAD ~ one aspect} of the invention, a command is sent from a FIAC to the FIA to set {TAIL ~ the frame processing apparatus} to identify received FIP frames, which are forwarded with the original destination and source Ethernet Media Access Control addresses 
In { HEAD ~ one aspect } of the invention , a command is sent from a FIAC to the FIA to set { TAIL ~ the frame processing apparatus } to identify received FIP frames , which are forwarded with the original destination and source Ethernet Media Access Control addresses
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