Sequence number resetting for synchronizing transfers in a...

Details Sequence number resetting for synchronizing transfers in a... Sequence number resetting for synchronizing transfers in a...

2004-01-27

2009-10-13

Flynn, Nathan J (Department: 2454)

Electrical computers and digital processing systems: multicomput

Computer conferencing

Demand based messaging

C370S229000, C370S231000, C370S235000

Reexamination Certificate

active

07603418

ABSTRACT:
A system and method for re-synchronizing or resetting packet sequence numbers including allowing a sender to send packets with a special sequence number pattern to cause convergence of the sequence numbers on a receiver side. In a preferred embodiment, no explicit routing protocol based sync-up between Sender and Receiver is required. One embodiment of the invention can provide for a maximum drop of two packets regardless of network bandwidth between sender and receiver, or of the processing power of the sender or receiver. In another embodiment, resynchronization can be achieved with no, or one, packets dropped. The implementation can be solely on a sending side of the transfer so that a receiver can operate according to standard protocols and sequencing rules without modification.

REFERENCES:
patent: 6978384 (2005-12-01), Milliken
patent: 6987981 (2006-01-01), Kuo
patent: 2001/0052072 (2001-12-01), Jung
patent: 2003/0081664 (2003-05-01), Lu et al.
Andrew Tanenbaum, Computer Networks, 1996 bu Prentice Hall PTR, third edition, section 3.4: Sliding Window Protocols, pp. 202-219.
Network Working Group (Martini et al.), “Encapsulation Methods for Transport of ATM Over IP and MPLS Networks,” Internet Draft, draft-ietf-pwe3-atm-encap-04.txt, Dec. 2003, 36 pp.

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