Abstract: Method and apparatus providing connection-oriented services for packet switched data communications networks. Directory services include distributed discovery of MAC addresses and protocol alias addresses. Topology services include a link state topology exchange among switches, which provides each switch with a complete topology graph of the network. This enables an access switch receiving a data packet to determine a complete path from a source end system to a destination end system. Another service includes resolution of broadcast frames to unicast frames, in order to reduce the amount of broadcast traffic. Policy restrictions may be applied prior to connection setup. Path determination services enable multiple paths from a source to a destination. Connection management includes source routed mapping of connections on the desired path.

Abstract: A golfing aid is disclosed which is adjustable to suit the individual preferences of a particular golfer, the adjustments subsequently being lockable to form a customized golf club. The aid includes a club head, a shaft and a connection arrangement for connecting the lower end of the shaft to the club head. The connection arrangement includes first, second and third members. The first member is connected to the shaft while the second member is connected to the club head at a connection whose position along the club head in the toe-heel direction is adjustable. A third member is connected between the first and second members and connects them indirectly to one another. The connection of the second member to the club head permits pivotal adjustments to be made about a first axis which is transverse to the ball-striking surface of the club head.