Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Patent
1996-06-19
1998-09-01
Hsu, Alpus H.
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
370522, 707201, G06F 13376
Patent
active
058020624
ABSTRACT:
A token-based protocol used to prevent conflicts between copies of the same data items residing in different servers of a replicated distributed system is provided. The servers in the system with database replicas are provided with token pointers that are each associated with a token. Token pointers are used to track the current possessor of the token. Whenever a server receives or transfers a token, its corresponding token pointer is updated to reflect which server possesses the token. The use of token pointers advantageously eliminates the need for global cooperation by the servers to regenerate a lost token.
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Gehani Narain H.
Kononov Alex
Rabinovich Michael
AT&T Corp
Hsu Alpus H.
Williams Karin L.
Yao Kwang B.
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