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ComSoc Technology News (CTN) is a free, online monthly publication that publishes interesting, timely, and newsworthy articles that span a wide range of topics related to the communications technology industry. Our mission is to be an informational resource that brings diverse perspective and thought leadership, while providing a platform for lively discussion amongst our readers.

CTN is run by a team of volunteer editorial board members who are technical experts in diverse fields. All articles are reviewed and edited by a technical editor. The editor-in-chief performs the final review prior to publication. 

July 2022 Issue

The Rise of IP Fabrics and Corresponding Novel Routing Paradigms – Part 2

We hope you enjoyed reading part 1 of these series of articles focused on IP fabrics.  In part 1 the authors provided background and foundational information to help understand the state of routing in IP fabrics. In this article, the authors provide a new perspective on how to address the challenges that this technology faces and introduce a new routing protocol, Routing in Fat Trees (RIFT), currently being standardized in IETF (Internet Engineering Task Force).

RIFT is a dynamic routing protocol that is tailored for use in Clos, Fat-Tree, and other anisotropic topologies and attempts to provide a highly robust, zero touch provisioning to what it is a rather complex system. As they write in the article: “One of the gnarliest dragons operators have had to battle is what it takes to deploy IP fabrics, and very few make it out unscathed.”  Let’s see how this new protocol allows the operators to slay the dragons of IP Fabric deployment and management.

Yingzhen Qu, CTN Editor

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Statements and opinions given in a work published by the IEEE or the IEEE Communications Society are the expressions of the author(s). Responsibility for the content of published articles rests upon the authors(s), not IEEE nor the IEEE Communications Society.