IMDEA Networks Institute Publications Repository

The Segment Routing Architecture

Filsfils, Clarence and Kumar Nainar, Nagendra and Pignataro, Carlos and Cardona, Juan Camilo and Francois, Pierre (2015) The Segment Routing Architecture. In: The 13th IEEE Global Communications Conference, Exhibition & Industry Forum (IEEE GLOBECOM 2015), 6-10 December 2015, San Diego, California, USA.

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Network operators anticipate the offering of an increasing variety of cloud-based services with stringent Service Level Agreements. Technologies currently supporting IP networks however lack the flexibility and scalability properties to realize such evolution. In this article, we present Segment Routing (SR), a new network architecture aimed at filling this gap, driven by usecases defined by network operators. SR implements the source routing and tunneling paradigms, letting nodes steer packets over paths using a sequence of instructions (segments) placed in the packet header. As such, SR allows the implementation of routing policies without per-flow entries at intermediate routers. This paper introduces the SR architecture, describes its related ongoing standardization efforts, and reviews the main use-cases envisioned by network operators.

Item Type: Conference or Workshop Papers (Paper)
Depositing User: Jeanet Birkkjaer
Date Deposited: 29 Apr 2016 08:54
Last Modified: 03 May 2017 12:01

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