We run a Netgear GS724Tv3 switch and part of the configuration per port is an option for "Lower Power Mode". The documentation for the switch lists this feature as a "Green Ethernet Configuration" feature:
A cable test is performed when this is enabled and the port link is up at 1 Gbps: if the cable is less than 10 m, PHYs are placed in low power mode (nominal power)
We have purchased a set of short patch cables of lengths less than 1 m, and we might possibly be having issues with a few of them (testing is still under way). We have this feature disabled at the moment.
Should this feature be enabled if the cables between a NIC / SWITCH are less than 10 m where power consumption is not a concern? As a follow-up question, is there a minimum cable length requirement for Cat 6 gigabit?