Instance live migration failure due to interface MTU mismatch

Solution Verified - Updated -

Issue

  • Instances are failing while live migration with MTU mismatch errors :

    Live Migration failure: unsupported configuration: Target network card MTU 1500 does not match source 8942
libvirt.libvirtError: unsupported configuration: Target network card MTU 1500 does not match source 8942

Environment

  • Red Hat OpenStack Platform 16.2

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