Cautions for Unavailable Services After N2EFT8 & N2EFT8A board is Connected to Third-Party Equipment

Abstract: Since the Generic Framing Procedure (GFP) for the N2EFT8/ N2EFT8A board strictly verifies the GFP frames from third-party huawei transmission equipment after the board is connected to third-party , all frames are discarded and services are unavailable. [Problem Description] Trigger conditions: 1. The following three conditions are met during deployment: (1) The NE software is… Read More »


Cautions for Recurring K Byte Caused by Optical Path Jitter of the RMS of the NG-SDH Product

[Problem Description] Trigger conditions: The RMS is in the switchover state, and the status of the Huawei optical fiber in the switchover section jitters. The MSprotocol repetitively switches between the state of waiting for recovery and the switchover state. As a result, the Kbyte in the loop recurs. Fault symptom: Scenario 1: The services that… Read More »

Be Ware of Software Watchdog Reset on the System Control Board of OptiX OSN Equipment

Summary: The software watchdog on the system control board of OSN Products an NE is occasionally reset when ASON gold services are created, rerouted, optimized, and changed among protection levels. [Problem Description] Trigger conditions: New gold services are created or the existing gold services are rerouted, optimized, or changed among protection levels. Symptom: NEs are… Read More »

Be ware of Warm Reset of the System Control Board on OptiX OSN Equipment

Summary: The ASON network is unstable. Fiber cut frequently occurs and ASON services are rerouted constantly. In this case, the system control board of an NE is prone to be reset when network resources are insufficient or residual cross connections exist. [Problem Description] Trigger conditions: The problem is triggered if the following conditions are met:… Read More »

Pay attention for SSN1EAS2 Board Occasional Packet Loss or Ethernet Service Interruption on NG SDH Products

Problem Description Trigger condition: 1. SSN1EAS2 boards use FPGA 110. 2. Cross-connect boards in slot 10 are active cross-connect boards. 3. The PCB of a cross-connect board is SSN1SXCS1, SST1PSXCSA1, SST1PSXCSA, SST2PSXCS, or SSN2SXCS. 4. When the proceeding three conditions are all met, the problem occurs occasionally (about 10% probability) and is determined by SSN1EAS2… Read More »

Notice of iManager U2000/N2000 BMS/T2000 Version Incorporation

Summary: The delivery and maintenance of NMS products face many challenges, and NMSs run in a complex environment. NMS versions need to be incorporated to eliminate NMS running risks, prevent major accidents, improve customer experience, and enhance customer satisfaction. [Problem Description] The U2000 V100R002C01, U2000 V100R003C00, U2000 V100R005C00, N2000 BMS V200R012C03, N2000 BMS V200R012C05, T2000… Read More »

Pay Attention to Service Interruption on FPGAs Cross-Connect Boards

[Problem Description] Trigger conditions: The FPGA of a cross-connect board is faulty and in an incorrect state, so the FPGA falsely checks the status of the service board and triggers MSP switching with an abnormal state, resulting in service interruption. Symptom: MSP switching occurs, services are interrupted, and the faulty cross-connect board is reset or… Read More »

Pay attention to Alarms Reported on Some Boards for OptiX Metro 6100 and OptiX BWS 1600G

[Problem Description] Trigger conditions: This issue is triggered when operations are performed on the flash memories of the boards such as the C9ELOG board intended for OptiX Metro 6100 or OptiX BWS 1600G. The operations include writing logs and saving configurations. Symptom: During the running of the OptiX Metro 6100 or OptiX BWS 1600G, a… Read More »

Precaution on Service Password Restoring the Fault of Oracle M-series Server

[Problem Description] If the Oracle M-series (M4000 or M5000) server is not in the Oracle’s maintenance warranty services, no service password is provided. Without the service password, the service cannot be restored if the servers have the following faults: 1. For Oracle M-series server such as M4000 or M5000, if the hardware status is faulty… Read More »

Pay attention on the Failure of TNH2SL1D and TNH2SP3D Boards Get Online on OSN 500

[Background Information] TNH2SL1D, TNH2SP3D, and TNH2PL3T boards are developed based on OptiX OSN 550 V100R003 and are used on OptiX OSN 500 V100R002 to replace TNH1SL1D, TNH1SP3D, and TNH1PL3T boards. TNH2 boards are applied to OptiX OSN 500 V100R002 using the hardware independence technology. Software of OptiX OSN 500 earlier than V100R002SPC305 does not contain… Read More »