These collisions cause packet fragments. After a packet has successfully passed this fragment threshold, it will continue to be received without error with near-certainty. This is how the FragmentFree option works. FragmentFree switching waits until the received packet passes the 64-byte fragment threshold and then forwards the packet. Complete packets are stored and checked for errors prior to transmission.
Latency varies by packet size since the entire packet needs to be received prior to transmission.
NA 7 microsec. FragmentFree 70 microsec. NA 9 microsec. One switching mode is designated for the entire hub. The default mode is FastForward.