During the upgrade process of the T OSN 3500 Equipment from V1R2 to V1R3 and error message appeared related one of the SL4 boards that had a Ring MSP(Multiplex Section Protection) configured. The upgrade of the N1GSCC board had just been finished, the nesoft, FPGA and extended BIOS were correctly uploaded to the board and the Basic BIOS was uploaded and activated apparently with no problems. But when querying the MS parameters of the protection subnet through T2000 to know the switching status of the Ring, the following error message appeared (picture attached):
Querying of the MS maintenance parameter failed. Error code: 1090603123
As a result the status of the MS protocol was not updated (picture attached). The protection did actually exist; it was checked by T2000 and Navigator). But as did not refresh it, we did not know if the ring was switched or on idle state which put under risk the traffic of the node considering that the upgrade process was not finished and line boards would need to hard reset.