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The Huawei OptiX OSN1800 is a series of box architecture Multi-Service Optical Transport Network (MS-OTN) transmission equipment that supports Time Division Multiplexing (TDM), packet, and Optical Transmission Network (OTN) services over a metro or campus optical network. This equipment enables multiple high-bandwidth services (from 2 Mbit/s to 100 Gbit/s) to be delivered at less cost. This article will tell us to collect opical power information from OSN 1800 V NEs after U2000 upgrade.

Issue Description

Customer reports that after U2000 NMS V200R016C60CP2025   upgrade it’s no longer possible to query OptiX OSN 1800 V V100R006C20SPC500/V100R006C00SPC300 optical power information. The query fails with the error code “The object does not exist. Error Code: 38429” .
For other OSN devices (OSN9800, OSN1800 I and OSN 1800 II) the optical power information query is available.

Alarm Information

The error reported:

Handling Process

Check the Nemgr logs:

1. Administration –> DCN Management –> NE select the device and check the last column
2. Collect the Nemgr logs from the below path:

/opt/oss/server/var/logs/Develop/nemgr_trans-*/* (the first * is the NE process Num, the second * means all files and folders)

Root Cause

Checking the file /opt/oss/server/nemgr/nemgr_trans/conf/devicepnp/dev1800v/gencfg/dwdmport.xml, observed there is a setting which can impact optical power query information.

Solution

We modified this file:

/opt/oss/server/nemgr/nemgr_trans/conf/devicepnp/dev1800v/gencfg/dwdmport.xml

like this, deleted the content by red frame:

Restart the processes:

nemgr_trans_1/2/3/4, nemgr_v8trans_1, nesvc_v8trans_1

Reopened the client and checked the issue, everything was ok.

Suggestions

This problem will be fixed on the patch R16C60CP2026