I find a field Memory in the result of ifconfig command. I am not quite clear about its meaning. By googling, I get some hint from unSpawn's post on this thread that Memory indicate what memory segment is in use. Does that mean a memory-mapping is used to map the NIC to the specified memory segment?
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Yes. The network card's onboard memory buffers are mapped into memory so the CPU can copy data into and out of them as the card sends and receives packets. | |||
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