old_contents: from .choices import InterfaceTypeChoices
  
  # BGP ASN bounds
  BGP_ASN_MIN = 1
  BGP_ASN_MAX = 2**32 - 1
  
  #
  # Interface type groups
  #
  
  VIRTUAL_IFACE_TYPES = [
      InterfaceTypeChoices.TYPE_VIRTUAL,
      InterfaceTypeChoices.TYPE_LAG,
  ]
  
  WIRELESS_IFACE_TYPES = [
      InterfaceTypeChoices.TYPE_80211A,
      InterfaceTypeChoices.TYPE_80211G,
      InterfaceTypeChoices.TYPE_80211N,
      InterfaceTypeChoices.TYPE_80211AC,
      InterfaceTypeChoices.TYPE_80211AD,
  ]
  
  NONCONNECTABLE_IFACE_TYPES = VIRTUAL_IFACE_TYPES + WIRELESS_IFACE_TYPES
  
  # Console/power/interface connection statuses
  CONNECTION_STATUS_PLANNED = False
  CONNECTION_STATUS_CONNECTED = True
  CONNECTION_STATUS_CHOICES = [
      [CONNECTION_STATUS_PLANNED, 'Planned'],
      [CONNECTION_STATUS_CONNECTED, 'Connected'],
  ]
  
  # Cable endpoint types
  CABLE_TERMINATION_TYPES = [
      'consoleport', 'consoleserverport', 'interface', 'poweroutlet', 'powerport', 'frontport', 'rearport',
      'circuittermination', 'powerfeed',
  ]
  
  CABLE_TERMINATION_TYPE_CHOICES = {
      # (API endpoint, human-friendly name)
      'consoleport': ('console-ports', 'Console port'),
      'consoleserverport': ('console-server-ports', 'Console server port'),
      'powerport': ('power-ports', 'Power port'),
      'poweroutlet': ('power-outlets', 'Power outlet'),
      'interface': ('interfaces', 'Interface'),
      'frontport': ('front-ports', 'Front panel port'),
      'rearport': ('rear-ports', 'Rear panel port'),
  }
  
  COMPATIBLE_TERMINATION_TYPES = {
      'consoleport': ['consoleserverport', 'frontport', 'rearport'],
      'consoleserverport': ['consoleport', 'frontport', 'rearport'],
      'powerport': ['poweroutlet', 'powerfeed'],
      'poweroutlet': ['powerport'],
      'interface': ['interface', 'circuittermination', 'frontport', 'rearport'],
      'frontport': ['consoleport', 'consoleserverport', 'interface', 'frontport', 'rearport', 'circuittermination'],
      'rearport': ['consoleport', 'consoleserverport', 'interface', 'frontport', 'rearport', 'circuittermination'],
      'circuittermination': ['interface', 'frontport', 'rearport'],
  }
  
  
  # Rack Elevation SVG Size
  RACK_ELEVATION_UNIT_WIDTH_DEFAULT = 230
  RACK_ELEVATION_UNIT_HEIGHT_DEFAULT = 20
  
new_contents: from .choices import InterfaceTypeChoices
  
  # BGP ASN bounds
  BGP_ASN_MIN = 1
  BGP_ASN_MAX = 2**32 - 1
  
  
  #
  # Rack elevation rendering
  #
  
  RACK_ELEVATION_UNIT_WIDTH_DEFAULT = 230
  RACK_ELEVATION_UNIT_HEIGHT_DEFAULT = 20
  
  
  #
  # Interface type groups
  #
  
  VIRTUAL_IFACE_TYPES = [
      InterfaceTypeChoices.TYPE_VIRTUAL,
      InterfaceTypeChoices.TYPE_LAG,
  ]
  
  WIRELESS_IFACE_TYPES = [
      InterfaceTypeChoices.TYPE_80211A,
      InterfaceTypeChoices.TYPE_80211G,
      InterfaceTypeChoices.TYPE_80211N,
      InterfaceTypeChoices.TYPE_80211AC,
      InterfaceTypeChoices.TYPE_80211AD,
  ]
  
  NONCONNECTABLE_IFACE_TYPES = VIRTUAL_IFACE_TYPES + WIRELESS_IFACE_TYPES
  
  
  #
  # Cabling and connections
  #
  
  # TODO: Replace with CableStatusChoices?
  # Console/power/interface connection statuses
  CONNECTION_STATUS_PLANNED = False
  CONNECTION_STATUS_CONNECTED = True
  CONNECTION_STATUS_CHOICES = [
      [CONNECTION_STATUS_PLANNED, 'Planned'],
      [CONNECTION_STATUS_CONNECTED, 'Connected'],
  ]
  
  # Cable endpoint types
  CABLE_TERMINATION_TYPES = [
      'consoleport', 'consoleserverport', 'interface', 'poweroutlet', 'powerport', 'frontport', 'rearport',
      'circuittermination', 'powerfeed',
  ]
  
  COMPATIBLE_TERMINATION_TYPES = {
      'consoleport': ['consoleserverport', 'frontport', 'rearport'],
      'consoleserverport': ['consoleport', 'frontport', 'rearport'],
      'powerport': ['poweroutlet', 'powerfeed'],
      'poweroutlet': ['powerport'],
      'interface': ['interface', 'circuittermination', 'frontport', 'rearport'],
      'frontport': ['consoleport', 'consoleserverport', 'interface', 'frontport', 'rearport', 'circuittermination'],
      'rearport': ['consoleport', 'consoleserverport', 'interface', 'frontport', 'rearport', 'circuittermination'],
      'circuittermination': ['interface', 'frontport', 'rearport'],
  }
  
subject: Remove obsolete constant CABLE_TERMINATION_TYPE_CHOICES