Hi,This has been bugging me for some time. We have VMware ESXi connected in vPC mode on a pair of N5K (through FEX). Dozens of time per day we were seeing the following errors :2011 Nov 18 16:24:34 Canal_auber_5548_6258 %FWM-2-STM_LOOP_DETECT: Loops ...

Hi,This is a long and boring post, but please bear with me I have a vSphere environnement with around 20 ESXi. All ESXi have 2 Intel 10GB NICs connected to a Necus 1000V except 2 servers that have 4 NICs connected to the 1000V instead of 2. A few day...