[NS2] The difference between an instproc "compute-routes" and a C++ function "computes_routes()"

Two NS2 functions and instproc has very similar name: "compute-routes{}" and "compute_routes()". The differences are shown below:

compute-routes{}

• is an OTcl command
• is defined in class Simulator
• is defined in file ~ns/tcl/lib/ns-route.tcl
• populate routing information into nodes

compute_routes()

• is a C++ function
• is defined in class RouteLogic
• is defined in file ~ns/routing/route.cc
• computes the routing information for all pairs of nodes

For more information about Nodes and Route setup, see Chapter 6 in the following book from Springer:

T. Issaraiyakul and E. Hossain, "Introduction to Network Simulator
NS2", Springer 2008.
http://www.springer.com/engineering/signals/book/978-0-387-71759-3

You may also find the following website useful:
http://www.ece.ubc.ca/~teerawat/NS2.htm