initscripts report "master is invalid lladdr" setting bridge master

Solution Verified - Updated -

Issue

  • initscripts report master is invalid lladdr setting bridge master
  • On boot, error is logged network[PID]: Bringing up interface a: "master" is invalid lladdr."
  • Bridge port slave network device does not come up on boot

Environment

  • Red Hat Enterprise Linux 8.2
  • network-scripts-10.00.6-1.el8_2.1 or earlier
  • Bridge port network interface named like an iproute2 keyword such as "a"
  • Interface in a bridge

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