Interdomain quality of service routing: setting the grounds for the way ahead

Abstract

A common criticism of the current Internet is the fact that it does not offer quality of service (QoS) guarantees across autonomous system boundaries. The Border Gateway Protocol (BGP) is central to solve this problem, since it enables AS to distribute reachability information. However, BGP is agnostic of any performance or QoS metrics. For this reason, the debate about the requirements for the future interdomain routing architecture and about whether these requirements are best met by an approach of introducing changes into BGP or by replacing BGP is still open. This article provides an insight into the interdomain QoS routing problem. First, the main drawbacks of current interdomain routing with regard to the provision of QoS are identified. Second, a survey of the most relevant interdomain QoS routing approaches are described and discussed. We also give a broad perspective on challenges surrounding the issue of whether to extend or replace BGP to support QoS, with particular emphasis on the technical challenges. However, we also point out some nontechnical unsolved challenges

End-to-end quality of service specification and mapping: The third party approach

“…This information is forwarded to the Class selector. The proposed functional model is compliant with traditional interdomain routing based on Border Gateway Protocol (BGP) as well as with different proposals for improvement of the BGP in order to support QoS requirements [25]. An important prerequisite is that Path provider regularly updates the interdomain routing information.…”

“…Apart from QoS extensions of BGP, existing approaches for interdomain QoS routing rely on introducing traffic control at the interdomain level [25]. We can distinguish between the overlay network-based schemes and localized approaches that use e.g.…”

“…Furthermore, our approach allows definition of different routing policies, via the 3P agent. Examples of routing architectures that are compliant with such centralized approach are presented in [25] and [38].…”

Performance of E2E service negotiation models in the next generation internet

“…Ove arhitekture mogu da podrže i različite algoritme QoS rutiranja između domena -od nadgradnje BGP protokola do tzv. ''pametnih'' algoritama, zasnovanih na aktivnom nadzoru raspoloživih putanja [18].…”

Interconnection of Large Scale Unstructured P2P Networks: Modeling and Analysis

“…Inter-cooperation of network instances has been identified in [7,8] as one of the future trends in the current Internet architecture development. When discussing logical networks, various techniques to achieve inter-communication among them have been presented.…”