DSR means:

• Dynamic steering response. http://www.seat.com/su/com/SEAT/site/SEAT-gene/athletic/DSR/main%2CtemplateId=main%2Clang=en.html

• The Dynamic Source Routing (DSR) protocol is an on-demand routing protocol for ad hoc networks. It was first described in:

David B. Johnson. Routing in Ad Hoc Networks of Mobile Hosts. Proceedings of the Workshop on Mobile Computing Systems and Applications, pp. 158-163, IEEE Computer Society, Santa Cruz, CA, December 1994.

Many successive refinements have been made to DSR, including DSRFLOW.