vRtrMplsLspPrimaryTimeUp 1.3.6.1.4.1.6527.3.1.2.6.2.1.6

The total time in 10-millisecond units that this LSP's primary path has been operational. For example, the percentage contribution of the primary path to the operational time is given by (vRtrMplsLspPrimaryTimeUp/vRtrMplsLspTimeUp * 100) %.