Describes the type of port. One of the following:
cascadeExternal - Port is an uplink with physical
connections which are
externally visible
cascadeInternal - Port is an uplink with physical
connections which are not
externally visible, such as a
connection to an internal
backplane in a chassis
localExternal - Port is a downlink or local
port with externally visible
connections
localInternal - Port is a downlink or local
port with connections which are
not externally visible, such as
a connection to an internal
agent
'internal' is used to identify ports which place
traffic into the repeater, but do not have any
external connections. Note that both DTE and
cascaded repeater downlinks are considered 'local'
ports.