Tag Archives: OptiX OSN 3500

when Ring MSP Configuration Failures on SSN1SLQ16 Boards on OSN 3500 Products

Keywords: SSN1SLQ16, MSTP, OptiX OSN 3500 [Problem Description] Trigger condition: 1. The version of an OSN 3500 NE is one of the versions listed in Versions Involved in the preceding table. 2. The logical board is SSN1SLQ16. 3. Configuration data is downloaded from the network management system (NMS), or ports are deleted and then added. Symptom: l During the configuration of the multiplex section… Read More »


NE Configuration Loss Due to Disabling of the Automatic and Periodic Database Backup Functions on MSTP Products

Summary:If the automatic and periodic database backup functions of an MSTP NE are disabled, NE configurations may be lost after the system control board is warm or cold reset, active and standby system control boards switch over, or the NE is restarted. [Problem Description] Trigger conditions: This problem occurs if the following conditions are met: Automatic and periodic database backup functions of the NE are disabled. After automatic and periodic database backup functions of the NE are disabled, modifications such as service configuration or ASON rerouting are made to the NE. The system control board is warm or cold reset, active and standby system control boards switch over, or the NE is restarted. Fault symptoms: After the system control board is warm or cold rest or active and standby system control boards switch over, some configurations modified after automatic and periodic database backup functions of the NE are disabled may be lost. In this case, a service board reset will result in complete or incomplete service interruption. After the NE is restarted, some configurations modified after automatic and periodic database backup functions of the NE are disabled may be lost, resulting in complete or incomplete service interruption. Identification method: This problem can be identified using the inspection tool or commands. Problem identification using the inspection tool For OptiX OSN 5X0 (except OptiX OSN 580) of versions earlier than V100R006C00, OptiX OSN 2000, OptiX OSN 1500/2500/2500REG/3500/3500II/3580/7500/7500II of V100R010 and TDM versions earlier than V100R010, OptiX OSN 9500, and OptiX OSN 9560, run the check item selected in the following figure. For OptiX OSN 5X0 (except OptiX OSN 580) of V100R006C00 and later versions, and OptiX OSN 1500/2500/2500REG/3500/3500II/3580/7500/7500II of V100R009C03, V200R011, and packet versions later than V200R011, run the check item selected in the following figure.   For OptiX OSN 580, run the check item selected in the following figure. For OptiX Metro 1000 V300, run the check item selected in the following figure. For OptiX Metro 3000, run the check item selected in the following figure.     If the check results meet the analysis result shown in the following figure, the automatic and periodic database backup functions are disabled.   Problem identification using commands Whether automatic and periodic database backup functions are enabled cannot be queried using the NMS. Periodic database backup Run the :dbms-get-cyclebackup command. If the returned result is disable, periodic database backup is disabled. The following figure shows an example.     Automatic database backup Run the :dbms-get-autobackup command. If the returned result is disable, automatic database backup is disabled. The following figure shows an example.   [Root Cause] After automatic and periodic database backup functions of the NE are disabled, new configurations or configuration modifications cannot be saved to the database.… Read More »

How to Troubleshoot Synchronous Ethernet Clocks For Huawei SDH

OptiX OSN 7500 II/7500/ OptiX OSN 3500/ OptiX OSN 1500 Troubleshooting: How to Troubleshoot Synchronous Ethernet Clocks The common faults regarding the synchronous Ethernet clock are as follows: A clock source cannot be properly switched and the quality of clock is low. Possible Causes l The connection at the port fails. l An alarm associated with the synchronous Ethernet clock function occurs on the network. Figure 1 Flow chart for handling a synchronous Ethernet clock fault   Procedure Step 1 Cause 1: The connection at the port fails. 1. Check whether the ETH_LOS or ETH_LINK_DOWN alarm occurs at the port. 2. If yes, clear the alarm and then check whether the fault is rectified. For details on how to clear the alarm, see the Alarms and Performance Events Reference. Step 2 Cause 2: An alarm associated with the synchronous Ethernet clock occurs on the network. 1. Check whether any alarm associated with the synchronous Ethernet clock occurs on the network. For details, see Relevant Alarms. 2. If yes, clear the alarm. For details on how to clear the alarm, see the Alarms and Performance Events Reference. Step 3 If the fault persists, contact Huawei technical support engineers to handle the fault. —-End

Notice on Prewarning for the PATCH_ERR Alarm Falsely Reported on the NG SDH V100R008C02SPH203

Summary: On an OptiX OSN3500  V100R008C02SPH203 that houses active and standby system control boards, the standby system control board periodically performs file patrol and reports version information to the active system control board to synchronize patch files. The two operations conflict occasionally, resulting in patch file synchronization failure and the reporting of the PATCH_ERR alarm.… Read More »

Be aware of SSN3PSXCSA replace Cross-connect Board on OptiX OSN 3500

Summary: When an SSN3PSXCSA (Ver.B) board is used to replace another cross-connect board, after the SSN3PSXCSA (Ver.B) board is inserted into the subrack, the state of the original active cross-connect board is abnormal and NE services are interrupted. After about 40s, the state of the original active board is back to normal and services recover.… Read More »

Notice on Bare Power Terminals Configured for OptiX OSN 3500

Abstract: OptiX OSN 3500 type-III cabinets (BOM: 02113256) started to be manufactured and delivered by India Supply Center from September, 2011. Cabinet process inspection shows that the cabinet power OT terminals delivered by India Supply Center are not fully wrapped in the heat shrink tubing. The entire cabinet test shows that in all power-on scenarios,… Read More »