Replication

hi All,

From last few days I am observing a below line after completing the replication. We are promoting our Domain controllers from Windows 2008 r2 to Windows 2012 r2.

58 - 06f77c22-b1b4-43c2-8681-2c3385ebbd05._msdcs.xx.xx.xx

What could be the reason, if I don't have any replication errors on any DC's apart for the above line.

Thanks

Thanks HA