FD - Frame Delay

FD is a key function for monitoring performance in Ethernet networks. It is the round trip delay for a frame, defined as being the time elapsed between the start of transmission of the first bit of the frame from the source node until reception of the last bit of the loopbacked frame at the source, with loopback being performed at the frame’s destination node.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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