Table listing source routes. A source route is a route
through the DTM net that is defined at the source of the
channel. The source routes may be used by many connections,
making the connections using the same route through the DTM
network. A source route may only be updated or deleted when
it is not used by any established connection.
Note that a source route set up as loose, with no
intermediate nodes, and set up to use any outgoing interface
is equivalent to a shortest path routing.