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Unable To Start ASM RAC Instances Due To ORA-27303: Remote Port MTU Does Not Match Local MTU. (Doc ID 947223.1)

Last updated on OCTOBER 15, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.


After create the ASM instances on a brand new RAC cluster configuration, they crashed with the next errors in the ASM alert.log files:




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