Description of the problem

Problem Summary: OSN8800 devices fail to load hotfix version V1R7C00SPH350.

Problem Details】Loading VR7C00SPH350 hotfixes on existing network elements fails several times on one network element.

Process

Step 1: Analyze the packet loading log of the network element and find that in the distribution phase, the distribution of the patch file to the master board of the slave rack timed out, resulting in the failure of the hot patch loading process.

Step 2: Capture and analyze the master control logs of the slave rack and find that multiple files returned cannot be read. Therefore, it is confirmed that the master control FLASH of the slave rack fails, which leads to the problem of not being able to write normally, causing the failure of loading hot patches.

Root Cause

The slave rack master board FLASH failed, which prevented data from being written properly, thus making loading hotfixes fail.

Solution

Replace the faulty main control board

The related technical information in this chapter and the troubleshooting process of SDH equipment are collected and organized by Shenzhen Optical Transmission Network Technology Company Limited (www.opticaltrans.com), please retain! Our company specializes in Huawei SDH optical transmission equipment, SDH transmission equipment sales.