Advanced Switching
Sample time
Valid input: 5 to 10000
Default value: 5
Function: Specifies the time needed to detect errors.
Comment: This should be the shortest time needed to detect errors. If the time is too
great, too many errors may occur before the forwarding mode changes.
Number of errors to enter Store-and-Forward threshold
Valid input: 1 to 1000
Default value: 6 (that is, 0.6% of the total number of Ethernet frames that are forwarded
on this port).
Function: The port is changed to store-and-forward mode, if the number of CRC errors
detected on a port rises to (or exceeds) this value in the specified Adaptive Mode Sample
Time.
Comment: The number of CRC errors must also be below the value specified here to enter
cut-through mode.
Number of errors to exit Store-and-Forward threshold
Valid input: 1 to 1000
Default value: 4 (that is, 0.4% of the total number of Ethernet frames that are forwarded
on this port).
Function: The port changes to cut-through mode, if the number of CRC errors detected on a
port drops to (or below) this value in the specified Adaptive Mode Sample Time.
Number of runts to enter Cut-through threshold
Valid input: 1 to 1000
Default value: 50 (that is, 5.0% of the total number of Ethernet frames that are forwarded
on this port).
Function: If the number of runts detected on a port drops to (or below) this value in the
specified Adaptive Mode Sample Time, the port changes to cut-through mode.
Comment: The number of CRC errors must also be below the value specified in Enter
Store-and-Forward threshold to enter cut-through mode.
Number of runts to exit Cut-through threshold
Valid input: 1 to 1000
Default value: 100 (that is, 10.0% of the total number of Ethernet frames that are
forwarded on this port).
Function: The port mode changes to fragment-free, if the number of runts detected on a
port rises to (or exceeds) this value in the specified Adaptive Mode Sample Time.
More info about
Forwarding modes
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