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This paper proposes a new packet re-marking scheme that can improve per-flow quality of service (QoS) of assured forwarding (AF) service traversing multiple domains of differentiated services (Diffserv) networks. The base concept of the scheme is to distinguish packets re-marked to out-of-profile at the domain boundaries from those already marked as out-ofprofile at the time of entering the network, and to give chances to the re-marked packet to recover back to in-of-profile that can enjoy its rightful QoS within the networks. Basic performance of the proposed scheme is evaluated through simulation study, and the results show its effectiveness in preserving QoS of the inter-domain flows.
Communications, Computers and signal Processing, 2003. PACRIM. 2003 IEEE Pacific Rim Conference on (Volume:1 )
Date of Conference: 28-30 Aug. 2003