prConStackFwdingMode

This  object  controls  whether  cut-thru  is  enabled on the
stack.  Enabling  cut-thru  can  help  to  minimise  the delay
experienced  by  packets  before  they  are forwarded to their
destination.  Setting  cut-thru  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 cut-thru 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  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.
          
Whatever  forwarding mode is selected, cut-thru cannot operate
if  the  destination  port is currently involved in 'cut-thru'
from  another  port.  In this case the device will process the
frame in store and forward mode.

MIB

A3COM0054-BRASICA2-SPECIFIC

OID

.1.3.6.1.4.1.43.10.34.1.1

Type

scalar

Access

readwrite

Status

mandatory

Parent

stackConfigGroup