Multiplex communications – Data flow congestion prevention or control – Flow control of data transmission through a network
Reexamination Certificate
2006-04-11
2006-04-11
Patel, Ajit (Department: 2664)
Multiplex communications
Data flow congestion prevention or control
Flow control of data transmission through a network
C370S229000
Reexamination Certificate
active
07027397
ABSTRACT:
Methods and apparatus are disclosed for accumulating traffic information and distributing flow control information in a packet switching system. Traffic information is collected in multiple elements and indications of congestion and/or other types of information useful in determining traffic conditions are forwarded to collecting elements. The collecting elements manipulate the received indications and generate flow control messages which are sent to individual sending components. In one implementation, a switching element maintains for each destination a count of packets within itself which are addressed to the particular destination. Indications of this collected information are sent to collecting switching elements. These collecting elements accumulate the information received from multiple sources. The accumulated information is evaluated, and when a congestion condition is located or anticipated, then flow control messages are distributed to all, or a subset of, the packet sources.
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Dejanovic Thomas
Dittia Zubin D.
Turner Jonathan S.
Cisco Technology Inc.
Patel Ajit
The Law Office of Kirk D. Williams
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