We just completed an install of 460-G2s mostly the 10g version. On multipule switches we found we were not able to get 1gig links to come up on the 10gig vim modules.
We are running code summitX-188.8.131.52-patch1-1.xos
The intent was to bring the stacks up at 10g on LRM optics which is why we have the vims. As we have seen before with older fiber even LRMs and Modals would not get the links to come up at 10g. It was when we tried to fail back to 1gig that we discovered the problem.
We do have 1 switch running two 1gig links off the vim but we have 3 or 4 switches that would not bring up the 1gig link unless we moved the optics to the front ports.
Any assistance would be appreciated.