monitoring at a server the traffic for a plurality of TCP connections or UDP associations through a given network path; and

prior to sending a packet on a particular TCP connection or UDP association within the plurality of TCP connections or UDP associations, determining if the packet will cause the traffic for the network path to exceed a level of traffic allowed and, if the packet will cause the traffic for the network path to exceed the level of traffic allowed, reducing the traffic for one of the particular TCP connection or UDP association and another TCP connection or UDP association using an action based on a transmission protocol corresponding to the one TCP connection or UDP association, and wherein when the one TCP connection or UDP association comprises a TCP connection, the action comprises: reducing a congestion window size by multiplying an amount of bandwidth available by a dynamic variable that is adjusted using changing requirements of the network path to reduce the amount of bandwidth available based on a fair share for the one TCP connection.