While tracerouting the desintation prefix, user should specify the preferred route to be taken to reach destination in case more then one type of route (IPv4, LDP, SPRING, RSVP) is available to reach destination.
Currently the user has to specify the order of route preference taken to reach the destination at compile time only in file instanceconst.h. Order is specified by enum trace_route_pref_order_t
While tracerouting the desintation prefix, user should specify the preferred route to be taken to reach destination in case more then one type of route (IPv4, LDP, SPRING, RSVP) is available to reach destination.