MTU configuration not working as expected

Solution Verified - Updated -

Issue

  • New networks created on top of an existing one defined with physical_network_mtus in /etc/neutron/plugins/ml2/ml2_conf.ini inherit the MTU from global_physnet_mtu instead of the one for the existing network.

Environment

  • Red Hat OpenStack 9.0 (RHOS) Mitaka.

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