Date Added: Jul 2010
This paper presents ConTug, a new, receiver-driven transport protocol for content-centric networks. It discusses the specific constraints of content-centric networks and describes the design of ConTug, highlighting a number of general challenges encountered while designing a transport protocol for such networks. It also presents ns-3 simulations that study how ConTug behaves in a number of simple content-centric networking scenarios, focusing on comparing the performance of ConTug with that of standard TCP and theoretical limits in similar scenarios. These early results show that even a simple design like ConTug is able to achieve an acceptable level of efficiency and provide sufficient congestion control.