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Log Reference

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of logs on the product.
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QINQ/5/ISSU_CHECK_ERR:The ISSU check failed because of the [STRING].


The specification change or incompatibility causes the ISSU check on the QinQ module to be failed.


Parameter Name Parameter Meaning
STRING Causes for the ISSU check failure may be:
  • failure in getting specification data: Failed to obtain the specification data.

  • specification change: Specifications were changed.

  • incompatible version: Versions were incompatible.

  • existing configuration: Other configurations existed.

Possible Causes

After checking specifications, incompatibility, and configurations, the QinQ module finds that it does not support the lossless ISSU.


  1. Stop the ISSU.
  2. Perform the lossy ISSU.
Updated: 2019-08-21

Document ID: EDOC1000142069

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