Description of the problem

An SNCP ring is formed with a virtual network element through the Huawei OSN3500 device's SLH1 single board 1 optical port at board position 4 and SEP single board 5 optical port at board position 15 to form a protection and to facilitate circuit configuration using paths. Users configure this through the 3880 using the path

When the user configures the 45M service using the path through the 3880, the network management prompts "protection group incomplete, path activation failed".

Alarm message

Protection group incomplete, error code 39486

Processing

1. Delete the protection subnet and re-create the fiber optic connection, and then configure the circuit, but it still prompts "Incomplete protection group, path activation failed";

2, using a single-station cross-connect for SNCP service configuration, selecting and receiving optical board using 4 boards 1 optical port and 15 boards 5 optical port, activation prompts "TPS protection group already exists"; at this time, check the status of the TPS protection group in the Element Manager, and found that 15 boards SEP single board and 16 boards SEP single board is configured with 1 + 1 TPS protection. 1TPS protection. At this time, check the host version, it is 5.21.16.13, under this version, it is prohibited to configure SNCP service on the boards with TPS protection. It is recommended that the customer change the slot to configure the service and then send it down successfully.

Root Cause

1、Protection subnet creation problem

2、Network management fiber optic connection creation problems

3、Other

Suggestions and Summary

1. High/low-order SNCP and TPS coupling configuration is prohibited in the host software NG-SDH V100R005 and later versions, and it is impossible to configure this type of service;

2. It is recommended that the network management can be more accurate when reporting errors to facilitate customer judgment.

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