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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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ALML/4/CANCOMFAIL:SMS and CANbus node of [STRING] lost communication. You are recommended to perform a switchover.


The CANbus node fails to communicate.


Parameter Name Parameter Meaning
STRING Information of the board where the CANbus node is located. For example, describe the information of a board through the board name, board type, or board slot ID.

Possible Causes

  • Reason 1: The system is busy. As a result, the CPU does not respond to the CANbus request for a long time.
  • Reason 2: The FE link or CANbus hardware fails.


  1. Check whether the recovery log ALML/4/CANCOMRESUME is generated later in the log file.
    • If so, the fault is rectified, and no action is required.
    • If not, go to step 2.
  2. Collect log information and configuration information, and then contact technical support personnel.You can collect diagnostic information using the display diagnostic-information command.
Updated: 2019-08-21

Document ID: EDOC1000142069

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