Patent ID: 7502324

Claim:
In a processor system for managing TCP communications, the processor system managing an original TCP connection with a TCP receiving system, the original TCP connection having transmission and reception characteristics, a method of fast retransmission of one or more contiguous TCP segments preceding a SACK region of TCP segments, comprising: determining that the one or more contiguous TCP segments previously transmitted on the original connection to the TCP receiving system need to be retransmitted; establishing a selective context duplicated connection with the TCP receiving system, the selective context duplicated connection having similar transmission characteristics as the original TCP connection; retransmitting the one or more contiguous TCP segments to the TCP receiving system using the selective context duplicated connection; and maintaining the original TCP connection for on-going transmission of additional TCP segments to the TCP receiving system and for receipt of communications back from the TCP receiving system responsive to the one or more contiguous TCP segments retransmitted on the selective context duplicated connection.