Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2007-12-25
2007-12-25
Jung, Min (Department: 2663)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
C370S235100, C370S236000, C370S469000
Reexamination Certificate
active
10304421
ABSTRACT:
Methods and apparatus are disclosed for selectively discarding packets such as in, but not limited to a packet switching system, by reacting to packet traffic conditions to reduce or eliminate the indiscriminate discarding of packets during identified overload conditions. Typically, a first element forwards multiple packets to a second element, each of the multiple packets being associated with a packet overload condition type of possible packet overload condition types, including, but not limited to a discard-on-overload type and a retain-on-overload type. The first element forwards a condition indication to the second element. The second element receives the condition indication and a particular packet. The second element discards the particular packet if the received condition indication is associated with the overload state and the packet overload condition type of the particular received packet is associated with the discard-on-overload type. Otherwise, the second element typically further processes the particular packet.
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Bettink John H. W.
Eatherton William N.
Cisco Technology Inc.
Jung Min
The Law office of Kirk D. Williams
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