svcTlsSpbL1FwdTreeTopoUcast 1.3.6.1.4.1.6527.3.1.2.4.2.120.1.6

The value of svcTlsSpbL1FwdTreeTopoUcast specifies level 1 unicast forwarding to follow the shortest path tree or to follow a single tree for this Shortest Path Bridging context in this VPLS service.