Symptom

Y.1731 PDUs received by MEP is forwarded even if PDU MD level is higher than MD level configured for MEP.

Conditions

Y.1731 PDU with higher MD level is received by MEP (UP or DOWN MEP) from either UP->DOWN or DOWN->UP direction. Following Y.1731 PDU types are affected: BM (Opcode 3) LBR (Opcode 2) GNM (Opcode 32) AIS (Opcode 33) LCK (Opcode 35) TST (Opcode 37) MCC (Opcode 41) LMR (Opcode 42) LMM (Opcode 43) 1DM (Opcode 45) DMM (Opcode 47) DMR (Opcode 46) CSF (Opcode 52) 1SL (Opcode 53) SLR (Opcode 54) SLM (Opcode 55)

Workaround

Following cli commands will fix the issue until next device reload: ### for UP MEP show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 3 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 2 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 33 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 35 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 37 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 43 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 42 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 45 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 47 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 46 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 53 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 55 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod EGR_OAM_OPCODE_GROUP 54 1 OPCODE_GROUP=3" ### for DOWN MEP show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 3 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 2 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 33 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 35 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 37 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 43 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 42 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 45 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 47 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 46 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 53 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 55 1 OPCODE_GROUP=3" show platform hardware pp active bshell "mod OAM_OPCODE_GROUP 54 1 OPCODE_GROUP=3"

Further Problem Description