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Dynamic selection of lowest latency path in a network switch
Dynamic selection of lowest latency path in a network switch
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机译:动态选择网络交换机中的最低延迟路径
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摘要
A system and method for low latency switching of data 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. Under normal operation, the data transport logic stores packet data into the memory. Later, the packet data is read from the memory and output to a destination output port. To reduce latency when the switch is not congested, the switching logic may be configured to perform a cut-through operation by routing packets directly from input ports to output ports without storing any portion of the packet in the memory. Alternatively, the switch may begin forwarding the stored packet data to the output port before the entire packet has been received or stored in the memory.
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