MPLS-STD-TE-MIB is now supported in 10.3. We are testing MPLS manager on Cisco ASR 9910 188.8.131.52.184.108.40.206.2390. But we are seeing issue where none are showing discovered LSP path info for MPLS manager.
Release: Component: SPCDIS
This is device issue as data is not getting populated in mplsTunnelTable of MPLS-TE-STD-MIB. Spectrum can discover and create LSP models only if it is able to read required attributes from mplsTunnelTable.