Multiplex communications – Data flow congestion prevention or control – Flow control of data transmission through a network
Reexamination Certificate
2002-08-05
2009-10-06
Hoang, Thai D (Department: 2416)
Multiplex communications
Data flow congestion prevention or control
Flow control of data transmission through a network
C370S231000
Reexamination Certificate
active
07599292
ABSTRACT:
A method and system is provided to enable quality of service across a backplane switch. An egress queue manager on one blade communicates with an ingress queue manager on the same or on another blade where each blade is connected via a backplane switch. The egress queue managers communicate the congestion to ingress queue managers using a messaging scheme. The ingress queue managers determine when to reduce or resume the packet sending rates of ingress queues mapped to congested egress queues or to destinations on congested blades. Each ingress queue manager maintains information about the status of egress queue congestion on its own blades. Normal rates of dequeuing packets from ingress queues are resumed only when the related congestion on all of the egress queues or related destinations has subsided.
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Chueh Justin
Gupta Rajarshi
Kasinathan Meera
Swenson Erik
Tangirala Ravi
Blakely & Sokoloff, Taylor & Zafman
Extreme Networks
Hoang Thai D
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