| 摘要 |
or the benefit of a reference ISP ( 10 ) having a number of users (C), connectivity evaluations on a data communication network are performed in relation to one or more ISPs of interest ( 12, 14 ). Upon selecting a plurality (T) of autonomous systems (AS) capable of forming a traffic source and/or destination for the users (C) of the reference provider ( 10 ), tables of the BGP type (BGP 1 , . . . , BGPm) are provided containing information on the paths available on the network for routing the traffic with regard to the above-mentioned autonomous systems (AS). From said tables the paths of BGP type are extracted relating to the provider or providers of interest ( 12, 14 ), searching for the paths that contain the respective AS number for the provider and/or providers of interest ( 12, 14 ). For each autonomous system (AS) the oriented sub-paths are extracted between each said autonomous system (AS) and the provider or providers of interest ( 12, 14 ), identifying for each sub-path the relating number of hops. |
