Another difference is UPoE uses 4 pairs of twisted cables, the other two uses 2 pairs.   UPoE is Cisco Proprietary.

Hi Chandan/Suresh Recently I faced below issue in my Nexus 7010 switch. I want to configure an EEM script or a RMON script. With RMON I believe there has to be MIBs to be configured. How can I find a MIB for my error log: HOSTNAME / cisco Nexus7000...