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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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VRRP/4/CHKFAIL:The ISSU check failed because of the [reason].


The ISSU check on VRRP modules failed because specifications changed or were incompatible.


Parameter Name Parameter Meaning


Indicates causes for the ISSU check failure. The causes are as follows:
  • failure in getting specification data: Failed to obtain the specification data.

  • specification change: Specifications changed.

  • incompatible version: Versions were incompatible.

Possible Causes

Lossless ISSU was found not supported on VRRP modules after the specifications, incompatibility, and configurations were checked.


  1. Stop the ISSU.
  2. Perform the lossy ISSU.
  3. Perform the ISSU after the PAF is updated.
Updated: 2019-08-21

Document ID: EDOC1000142069

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