Information-Sharing Meeting at ECOC 2017

On Sep, 18th, ON2020 successfully held an Information-Sharing Meeting at ECOC 2017 based on the survey results we received form top operators, vendors, suppliers, and researchers over the past three months. It is very exciting to see lots of feedback coming from the whole industry, but we are not going to stop here. We are still trying to get more feedback from more players in the field, with the aim to summarize all input in a white paper later this year.Therefore, should you not yet have completed the survey yourself, please let us know your opinions before October 31st. Please note that this survey is anonymous and accepts your personal opinions, detached from official corporate viewpoints.

You may download the complete version of ON2020 Questionnaire and send your feedback to, or answer the questions on specific topics through email by clicking the Answer and Send button below each section(Outlook recommended).

Your answers will be very valuable to us and will help ON2020 to prepare future projects and studies for our community.

1)Respondent Background

  • Are you professionally involved with commercial network deployments or operations?
  • What is your professional role? (Network planning, network operations, etc.)
  • What geographic region(s) does the network you are working on operate in?
  • Roughly describe the network you are working on in terms of its key metrics (geographic extent, number of nodes, deployed capacities, etc)?
  • Which company are you working for? (Optional information; would be helpful in compiling the survey results but will not be disclosed by ON2020 in any of its read-outs)

2) Capacity and Granularity

  • What aggregate capacities might be needed per link for submarine, terrestrial LH, regional, metro, DCI, access?
  • Capacity growth through span overlay. This is happening already and should only accelerate. Where is it happening today and to what extent? What are the barriers for some operators to employ this (and thus use C+L)? Does our industry need to modify how our hardware is constructed to better accommodate this approach? What might that look like?
  • What capacity on a given link might share the same source/destination (aggregate p2p), and what capacity might just share a particular link? (Important for switching/grooming solutions)
  • Superchannel Transceivers: When will the unit of capacity deployment reach a level where superchannel transceivers will be used? What other benefits of superchannel transceivers are important to you (please quantify): better spectral efficiency, less add/drop port counts and associated fibering, better cost/bit? What implications will this shift have on network design and management? Are CD/C modules ready to accept these SC transceivers or do we need a new generation?
  • How flexible should connections be in terms of their capacities?
  • What importance do you assign to the following module aspects: Further reducing 100G cost and power consumption, cost-effective 400G, developing “white-box” optical modules? (Please rank and/or make your own prioritized list.)

3) Connectivity and Flexibility

  • How might the number of network nodes and the required (desired) connectivity between the nodes evolve in LH, regional, metro, DCI, access?
  • ROADM Networking: Potential CD/C values have been discussed for some time. How are these values being extracted within networks deployed with these capabilities? What is the motivation for those not deploying these capabilities, what would trigger them to do so? What are key improvements that are needed?
  • How much optical transparency is desired? (e.g.: long-reach PON served from deep within the metro/regional NW; C-RAN service radius; intra-DC optics directly serving inter-DC; etc.)
  • How about delay management for 5G/VR and associated router bypass?
  • How fast should the reconfigurability for dynamic traffic changes be?
  • What importance do you assign to the following system aspects: Further reducing ROADM/OXC cost and power consumption, increase system flexibility via flex-grid WDM, improving fiber links (via C+L bands, lower loss fiber, lower noise amplification, etc.) - (Please rank and/or make your own prioritized list.)

4) Management and Operations

  • The role of SDN across the industry (very different from Webscales to small operators)
  • Impairment-aware x-layer and x-service networking, NFV
  • Role of a Network-OS
  • Role and views of dis-aggregation/white boxes
  • Reliability of and legalities of disaggregation and automatic control: who is taking the blame if parts of the network fail? Do we want a highly reliable network or a best-effort network with multiple-path redundancy?
  • What importance do you assign to the following network aspects: Faster network deployment, faster bandwidth-on-demand (BoD), multi-vendor interoperable T-SDN (Please rank and/or make your own prioritized list.)

5) Open Networking and Disaggregation

  • What values (cost, operational, functionality) you think can be extracted by optical network disaggregation at the element level, node level, network level.
  • What are the compromises you are willing to make with each approach (performance, supply chain, predictability, necessary resources, ecosystem)?
  • Which approaches would you moist likely pursue and why?

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