Tag Archives: Huawei OptiX OSN 3500

Be ware of Unnecessary ActiveStandby SCC Switching on OSN 3500&7500

Abstract Because 3.3 voltage detecting circuits of SSN1GSCC02 and SSN3GSCC02 boards are of low precision, unnecessary active/standby SCC switching occurs, resulting in a possibility that NEs are unreachable to the NMS. If the ASON feature is enabled on NEs, data configuration may be lost during the active/standby SCC switching. [Problem Description] If the following conditions… Read More »

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Be Ware of Services Interruption on OptiX OSN 3500

Summary: On a port of an SSN1PEG16 or SSN1PEX1 board of a version earlier than V200R011C03SPC100, both LAG and CAR are enabled. After the board is upgraded to a version between V200R011C03SPC100 and V200R013C10SPC100 (itself excluded), the board is repeatedly reset due to a software bug. As a result, services are interrupted. [Problem Description] Trigger… Read More »

Beware of BD_STATUS Alarms by Cross-Connect Boards of OptiX OSN 3500

Summary: Creep occurs on SD585 soldered balls of some cross-connect boards on  Huawei transmission OptiX OSN 3500 equipment so these boards repeatedly reset, fail to work, and report BD_STATUS alarms. [Problem Description] Trigger conditions: There is a possibility that this problem occurs as a result of long-term exposure of the boards involved to high temperature. Symptom:… Read More »

Be careful inserting board in Huawei OSN May result in Bus_Err Alarm

Symptom: BUS_ERR alarms appeared on 2 different NEs which were OSN 1500 and OSN 3500. (can see attached  file for more info).   Cause Analysis: The reason of this alarm was the back plane of  both  Huawei transmission OSN 7500 and OSN 1500, there were bend pin corresponding to the boards which were having this alarm. Handling Process:… Read More »

Do you find any solution on rectification Cross-Connect BD_STATUS alarm on OSN 3500

Summary: Creep occurs on SD585 soldered balls of some cross-connect boards of OptiX OSN 3500 so these boards repeatedly reset, fail to work, and report BD_STATUS alarms. [Problem Description] Trigger conditions: There is a possibility that this problem occurs as a result of long-term exposure of the boards involved to high temperature. Symptom: 1. Boards are… Read More »