Friday, 26 February 2021

Open Networking Optical- Part2 - OpenROADM

Welcome back! this post is part of an Open Networking blog series,  exploring different Open Networking architectures and their current state(trials, demos, and deployment). You can refer to my previous post for an overview of all the major industry initiatives.

Today, let's take a closer look into OpenROADM progress made so far. 

OpenROADM is a major initiative within the optical industry primarily driven by AT&T( a service provider) to build scalable, cost-effective, open, and flexible networks.

Primary Use-Case for OpenROADM Trials

AT&T along with Vendor partners completed its first field test in December 2016, summarized below. 





For 400GbE trials, AT&T announced 3 phases for the testing. 

Phase 1: Will use optical gear from Coriant to carry a true 400GbE service across a long-distance span of AT&T global backbone from New York to Washington, demonstrating that AT&T’s nationwide software-centric network is 400G-ready.

Phase 2: Will trial a 400GbE on a single 400G wavelength across AT&T’s OpenROADM metro network. We’ll use optical gear from Ciena, a developer of next-generation coherent optical solutions, to show the network is ready to transport 400GbE to serve our customers in a metro area.

Phase 3: Will test the first instance of a 400GbE open router platform. The “disaggregated router” platform uses merchant silicon and open-source software – another industry first.

Finally, in November 2019 AT&T announced the completion of trials and enabled the first 400GbE production traffic on its network. Interestingly the traffic was terminated on another white box router. 



Definitely, a lot is accomplished between the OpenROADM MSA agreement and finally 400GbE production traffic using OpenROADM Interface definition. Definitely, the solution has transitioned from concept to production, and programmable, open optical networks should soon become a norm. 

Feel free to leave a comment, you can find below some important reference resources for additional information. See you soon, have a good day!

References:


" Formal education will make you a living; self-education will make you a fortune"

- Jim Rohn


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