Intra-Domain Pathlet Routing
Marco Chiesa, Gabriele Lospoto, Massimo Rimondini, and Giuseppe Di, Battista

TL;DR
This paper introduces a scalable, fine-grained internal routing control plane for ISPs, enabling better path management, QoS enforcement, and incremental deployment, addressing limitations of existing technologies like MPLS.
Contribution
It extends pathlet routing with a new control plane tailored for ISP internal networks, supporting scalable, robust, and configurable routing management.
Findings
Effective and scalable routing control demonstrated in OMNeT++ simulations.
Supports independent configuration of network segments without full network knowledge.
Enables QoS enforcement and coexistence with other control planes.
Abstract
Internal routing inside an ISP network is the foundation for lots of services that generate revenue from the ISP's customers. A fine-grained control of paths taken by network traffic once it enters the ISP's network is therefore a crucial means to achieve a top-quality offer and, equally important, to enforce SLAs. Many widespread network technologies and approaches (most notably, MPLS) offer limited (e.g., with RSVP-TE), tricky (e.g., with OSPF metrics), or no control on internal routing paths. On the other hand, recent advances in the research community are a good starting point to address this shortcoming, but miss elements that would enable their applicability in an ISP's network. We extend pathlet routing by introducing a new control plane for internal routing that has the following qualities: it is designed to operate in the internal network of an ISP; it enables fine-grained…
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Taxonomy
TopicsSoftware-Defined Networks and 5G · Network Traffic and Congestion Control · Advanced Optical Network Technologies
