This per-port attribute describes whether the port identified by atswitchPortNumber uses store-and-forward bridging for local switched Ethernet packets or cut-through. The Hardware allows cut-through on Transmission and cut-through-on Receive and the same for the store-and-forward. But some of the Config option does not make any sense. So, for now there is no distiction of Rx and Tx. Both Tx/Rx support store-and-forward or cut-through. This Object is not applicable for 37XX with XL hardware as the Hardware does not support both Cut through and Store and Forward. It is default Store and Forward. Even though the Set on either of them is done, Hardware does not do the Cut through Switching.