QoS routing in MPLS networks using active measurements

Abstract

Abstmcl-We consider the problem of selecting an appropriate ISP for a new connection request from several possible LSPs which can satisfy the QoS of the new connection. We propose an active measurement approach where a probing sUeani is sent along each LSP. Based on the end-to-end delays of the packets of the probing stream, we estimate the m w i delays and the throughput the new connection will get. Our approach allows to include the effect of the new COMClion also in estimating the mean delay and the throughput. The new CoMCction may be using TCP or UDP.fiywords: MPLS networks, QoS routing, aetive measurements.

Multimedia traffic quality of service management using statistical and artificial intelligence techniques

“…The QoS associated with delivering an application by a network can be evaluated by analysing or measuring its traffic. Analysis techniques examine the characteristics of the traffic [8][9][10][11], whereas the measurement techniques determine how well the network treats the traffic [12][13][14].…”

“…Subjective approaches obtain individuals’ views of the applications’ quality [1]. Active approaches generate probe packets and inject them into the complete or a section of the network [13]. The principle behind active approaches is that the performance experienced by the probing packets resembles that of the actual traffic.…”

“…It considers the applications’ QoS requirements, interprets them without the need for complex mathematical models and ensures real‐time operation. It uses the sampled traffic generated from the proposed adaptive statistical sampling technique to overcome some drawbacks of both active and passive measurement methods introduced in [13, 14].…”