---
prelude: >
    Eliminate network topology based port binding
upgrade:
  - If network topology based port binding,
    network-topology, is used, migrate to pseodu agent
    based port binding, pseudo-agentdb-binding.
deprecations:
  - network topology based port binding was removed.
    So is network-topology value for port_binding_controllers.
    Migrate pseudo-agentdb-binding port binding.
