nanog mailing list archives
Re: Routed optical networks
From: Etienne-Victor Depasquale via NANOG <nanog () nanog org>
Date: Tue, 2 May 2023 18:45:05 +0200
Hello Eve, Thank you for weighing in; I'm eager for feedback from the field. This eagerness stems from my work, over the past two years, to form my understanding of where current- and next-gen metro area networks are heading. I need this understanding to help academics in my field of specialization to better understand energy consumption in metro-area networks. Your observation about elimination of OTN resonates well with what I've heard from webinars, and what I've read in studies. It also matches what I've shown in the graphic I linked to in an earlier post in this thread (this graphic <https://drive.google.com/open?id=1HkXAbd2PIQF_ACOeQYDtpeGxTEaTT1Y7&authuser=etienne.depasquale%40um.edu.mt&usp=drive_fs> ). However, the larger operators are less inclined to drop OTN as a server layer network (layer network used as defined in G.805). Indeed, part of the scope of the question leading to the results shown, actually was to try to understand the prevalence of OTN in operators' current networks. As regards greenfield, the *NOG results are a bit more nuanced <https://drive.google.com/file/d/1Hl-UKJNMTguGCH3_g9cTiSDBdQAK4lya/view?usp=sharing> . IP/MPLS over Ethernet over DWDM with ROADMs for node bypass gets 34% of the vote, up from about 13% of what is currently in their networks. Cheers, Etienne On Tue, May 2, 2023 at 4:01 PM Eve Griliches <egriliches () gmail com> wrote:
Hi Etienne, Below is our (Cisco) definition of the Routed Optical Network. The goal, metro or long haul or subsea, is to reduce the number of control planes. By migration TDM traffic using CEM or PLE to the IP layer, you eliminate the OTN control plane and management. Eventually, when standards are settled the ultimate goal is to have a single control plane for the network. I'm not trying to be a commercial here, but you can read more in the resources section on this page: https://www.cisco.com/c/en/us/solutions/service-provider/routed-optical-networking/index.html HTH, Eve Routed optical networking, is an architecture that delivers improved operational efficiencies and simplicity. The solution works by merging IP and private line services onto a single layer where all the switching is done at Layer 3. Routers are connected with standardized 400G ZR/ZR+ coherent pluggable optics. With a single service layer based upon IP, flexible management tools can leverage telemetry and model-driven programmability to streamline lifecycle operations. This simplified architecture integrates open data models and standard APIs, enabling a provider to focus on automation initiatives for a simpler topology. On Mon, May 1, 2023 at 2:30 PM Etienne-Victor Depasquale via NANOG < nanog () nanog org> wrote:Hello folks, Simple question: does "routed optical networks" have a clear meaning in the metro area context, or not? Put differently: does it call to mind a well-defined stack of technologies in the control and data planes of metro-area networks? I'm asking because I'm having some thoughts about the clarity of this term, in the process of carrying out a qualitative survey of the results of the metro-area networks survey. Cheers, Etienne -- Ing. Etienne-Victor Depasquale Assistant Lecturer Department of Communications & Computer Engineering Faculty of Information & Communication Technology University of Malta Web. https://www.um.edu.mt/profile/etiennedepasquale
-- Ing. Etienne-Victor Depasquale Assistant Lecturer Department of Communications & Computer Engineering Faculty of Information & Communication Technology University of Malta Web. https://www.um.edu.mt/profile/etiennedepasquale
Current thread:
- RE: Routed optical networks, (continued)
- RE: Routed optical networks Vasilenko Eduard via NANOG (May 04)
- Re: Routed optical networks Mark Tinka (May 04)
- RE: Routed optical networks Vasilenko Eduard via NANOG (May 04)
- Re: Routed optical networks Ge DUPIN (May 04)
- Re: Routed optical networks Mark Tinka (May 04)
- Re: Routed optical networks Mike Hammett (May 05)
- Re: Routed optical networks Mark Tinka (May 05)
- Re: Routed optical networks Tom Beecher (May 04)
- RE: Routed optical networks Vasilenko Eduard via NANOG (May 04)
- Re: Routed optical networks Etienne-Victor Depasquale via NANOG (May 02)
- Re: Routed optical networks Mark Tinka (May 02)
- Re: Routed optical networks Mark Tinka (May 04)
- Re: Routed optical networks Phil Bedard (May 08)
- Re: Routed optical networks Mark Tinka (May 08)
- Re: Routed optical networks Phil Bedard (May 09)
- Re: Routed optical networks Mark Tinka (May 09)
- Re: Routed optical networks Mark Tinka (May 05)