Observations on the dynamics of a congestion control algorithm: the effects of two-way traffic
SIGCOMM '91 Proceedings of the conference on Communications architecture & protocols
Modeling TCP throughput: a simple model and its empirical validation
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Explicit allocation of best-effort packet delivery service
IEEE/ACM Transactions on Networking (TON)
Understanding and improving TCP performance over networks with minimum rate guarantees
IEEE/ACM Transactions on Networking (TON)
How to Make Assured Service More Assured
ICNP '99 Proceedings of the Seventh Annual International Conference on Network Protocols
Realizing Throughput Guarantees in a Differentiated Services Network
ICMCS '99 Proceedings of the 1999 IEEE International Conference on Multimedia Computing and Systems - Volume 02
IEEE Network: The Magazine of Global Internetworking
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This paper deals with the TCP bandwidth guarantee problem in a Differentiated Services (Diffserv) network. Several researches proposed a RIO mechanism for the assured service. In RIO, IN packets experience lower drop probability than OUT packets to guarantee the promised bandwidth even under network congestion. However a token bucket marker fails to provide adequate performance to TCP connections because TCP generates bursty packets due to the unique TCP congestion control mechanism. We propose a new marker that uses a data buffer as well as a token buffer. The marker with a data buffer works well with RIO because it smooths TCP traffic. We show that the marker with a data buffer achieves the target throughput better than a marker with a token buffer only. We also show that the optimal data buffer size is proportional to reserved throughput and RTT.