RCP拥塞控制协议。可以很方便地移植到NS2中去。可以和TCP，XCP等比较。做拥塞控制的实验。适用于NS-2.30版本-RCP congestion control protocol. Can easily migrate to NS2 and going. Can and TCP, XCP and other more. Do congestion control experiment. Applies to NS-2.30 version