System and method for late-dropping packets in a network switch

Details System and method for late-dropping packets in a network switch System and method for late-dropping packets in a network switch

2008-07-29

2008-07-29

Pham, Chi H. (Department: 2616)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S411000, C370S429000

Reexamination Certificate

active

07406041

ABSTRACT:
A system and method for late-dropping packets in a network switch. A network switch may include multiple input ports, multiple output ports, and a shared random access memory coupled to the input ports and output ports by data transport logic. Packets entering the switch may be subject to input thresholding, and may be assigned to a flow within a group. A portion of a packet subject to input thresholding may be accepted into the switch and assigned to a group and flow even if, at the time of arrival of the portion, there are not enough resources available to receive the remainder of the packet. This partial receipt of the packet is allowed because of the possibility of additional resources becoming available between the time of receipt of and resource allocation for the portion of the packet and receipt of subsequent portions of the packet.

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