prConStackFwdingMode

This object controls whether cut-thru is enabled on the stack.
          
Enabling cut-through can help to minimise the delay experienced
          
by packets before they are forwarded to their destination.
          
Setting the mode to 'fastForward' causes frame forwarding to
          
begin as soon as 32 bytes of the frame have been received.
          
Setting it to 'fragmentFree' causes frame forwarding to begin
          
when 64 bytes have been received. This is slower, but eliminates
          
the risk of forwarding an illegally short frame to the
          
destination port, however a valid length frame might still be
          
forwarded even though it had a CRC error. Setting this object to
          
'storeAndForward' disables the cut-through completely, and
          
frames will not be forwarded until they have been received in
          
their entirety.
          
          
          
When the mode is set to intelligent, the effective switching
          
mode is set initially to fast forward.  The switch then monitors
          
the total error rate of frames received on each port, and if it
          
exceeds, say 20 error frames a second, it changes the effective
          
mode for the port to store and forward. If the error rate then
          
drops to zero the effective mode is restored to fast forward.
          
The actual error rates may differ for different switches.
          
          
          
Whatever forwarding mode is selected, cut-through cannot operate
          
if the destination port is currently involved in 'cut-through'
          
from another port.  In this case the device will process the
          
frame in store and forward mode.

MIB

A3COM0420-SWITCH-EXTENSIONS

OID

.1.3.6.1.4.1.43.10.34.1.1

Type

scalar

Access

readwrite

Status

mandatory

Parent

stackConfigGroup