Skip to Main Content
The explicit control protocol (XCP), which has many desired properties such as short queuing delay, high utilization and so on, is considered promising for future high bandwidth-delay product (BDP) networks. However, the congestion control mechanism of XCP Is quite different from that of TCP, and as a result, XCP cannot coexist well with TCP. In this paper, we propose a scheme for Incremental deployment of XCP, In which XCP-TCP gateways seamlessly interconnect the XCP and TCP domains. The XCP-TCP gateway maps the congestion control functions between XCP and TCP. Our analysis and simulations show that: 1) TCP-XCP-like flows can coexist well with XCP; 2) TCP-XCP-llke flows have much better RTT fairness than TCP.