Summary

If the quality of service (QoS) of the web-browsing service drops, Internet service providers (ISPs) and Internet content providers (ICPs) would hope to be able to immediately find the reasons, fix the faults and improve the web-browsing service. To achieve the above aims, Recommendation ITU-T Q.3961 specifies parameters for bottleneck evaluation of the web-browsing service. These parameters can be divided into four groups: parameters in the application layer, parameters in the transportation layer, parameters in the network layer and the characteristic parameters. The relationship between these parameters is also introduced in this Recommendation.