Method for synchronizing redundantly transmitted message cell st

Details Method for synchronizing redundantly transmitted message cell st Method for synchronizing redundantly transmitted message cell st

1995-05-11

1996-10-01

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 601, 370108, H04L 122, H04L 1256

Patent

active

055616615

ABSTRACT:
In a cell-oriented communication network (ATMN), respective control cells are inserted at predetermined time intervals into two message cell streams redundantly transmitted via a path pair (EP,AP). The control cells respectively contain a sequence number that varies continuously from control cell to control cell. The appearance of control cells is separately monitored for the two message cell streams at the end of the path pair. Which of the two message cell streams is the leading message cell stream is thereby first determined on the basis of the sequence numbers appearing in the message cell streams. The leading message cell stream is then delayed until the appearance of identical sequence numbers in the message cell streams.

REFERENCES:
patent: 5408463 (1995-04-01), Merchant et al.
patent: 5448573 (1995-09-01), Yamaguchi
"Hitless Line Protection Switching Method for ATM Networks", H. Ohta et al, IEEE International Conference on Communications ICC (1993), pp. 272-276.

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