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Re:A Peek Inside a 400G Cisco Network Chip by will_hughes on Thursday September 14, 2017 @11:57PM (#15254519)
> My very casual understanding was that 100G was state of the art.

I think you're having the same conceptual issue that I had when first reading it.

The 400G in the article title is referring to the bandwidth of the chip, not the bandwidth of any particular port.

The ports, as mentioned elsewhere here, were probably either 10G or perhaps 40G.

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