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That would be true, if the switches and interfaces were all powered off between packets.

Dream on.


Looks lke the IEEE is working on this based on this story. While it doesn't completely power down, the idea is to run the link at the minimum speed needed, so when idle the ports are throttled down to 10mbit.

I'm also wondering about your GigE power usage numbers of 1w, as I can find several product announcements of newer lower power GigE chips, with one of those dating back to 2002. Are manufacturers just being really slow on switching to new chips, or being cheep?