A TN52TOG and TN54NQ2 placed in slot16 and slot5 of OSN8800 (V100R002C02SPC800), the TN52TOG report ODU0_PM_SSF alarm after configuring ODU0 between TN52TOG and TN54NQ2.The service is interrupted.
TN52TOG report ODU0_PM_SSF alarm
1 Checked alarm, had no the other alarms in this NE.
2 Checked the parameter of NQ2; we found the Line Rate mode is Speedup Mode. Changed the parameter from Speedup Mode to Normal Mode, the ODU0_PM_SSF alarm disappeared. The service is OK.
1 R-LOS,ODUk_TCMn_SSF, ODUk_TCMn_LCK, ODUk_TCMn_OCI, ODUk_TCMn_AIS, ODUk_TCMn_LTC, ODUk_TCMn_TIM or OTUk_TIM cause ODU0_PM_SSF.
2 the wrong parameter set in NQ2.
According to G.709 protocol, OUD0 service cannot map from ODU0 ---> ODU2e ---> OTU2v, so the Speedup Mode of NQ2 lead to ODU0_PM_SSF alarm of TOG.