Description: The value of this object identifies the mode of negotiating the setup of a neighbor relationship on P2P interfaces: none(0): indicates that the negotiation mode used to establish a neighbor relationship is not specified. twoWay(1): indicates that a neighbor relationship is set up through negotiations in two-way handshake mode. threeWay(2): indicates that a neighbor relationship is set up through negotiations in three-way handshake mode. threeWayOnly(3): indicates that a neighbor relationship is set up through negotiations in three-way handshake mode and the backward compatibility is not supported. By default, a neighbor relationship is set up through negotiations in three-way handshake mode.