What is the Rts threshold?

RTS (Request-to-send) packets are a mechanism used by the 802.11 wireless networking protocol which establish an open communiction to an AP or node. The client machine transmits the RTS to the AP which in turn sends a CTS packet (clear-to-send) back to the client. This prevents packet collisions, which are common among unmanaged high density networks. In most routers, the default setting for the RTS threshold will be around 500. Acceptable packet sizes range from 0 to 2'347.