An important technical aspect of achieving end-to-end quality of service (QoS) in next
generation networks refers to allocation of the total performance impairment budget (delay,
jitter, packet loss) among multiple providers. In this article, we first propose a generic policy
for allocating per-domain impairment budgets, relying on the set of performance metrics from
service request and the rules for their composition on the multi-domain path. The objective is
to provide end-to-end QoS through the set of heterogeneous domains, with different QoS …