CISCO CommsDay Melb Congress
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This document discusses routed optical networking as an approach to maximizing infrastructure investments. It outlines issues with the legacy approach of separate optical and router networks and notes that optics costs are increasing as speeds increase. Routed optical networking integrates routers and optics to reduce power, space, and total cost of ownership compared to traditional networks. It provides examples of 400G pluggable coherent optics and new silicon requirements. Benefits shown include up to 74% less power and 58% less space per node, as well as 46-57% lower total and operating costs. The approach has been deployed in Australia and Europe by multiple service providers.
CISCO CommsDay Melb Congress
- 1. Daniel Hutchins, Director - Systems Engineering March 2022 Maximising your infrastructure investments with Routed Optical Networking [email protected]
- 2. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Market Landscape • Service traffic is all IP • Increasing access to dark fibre • Need to reduce power & space • Need to digitise the network
- 3. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Legacy approach to utilising fiber Optical Line System Router Transponde r Optical Line System Transponde r Router Site A Site B
- 4. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Issues with the legacy approach • Not power and space optimised • Organisational silos • Separate OSS • Cost is shifting into optics • Not leveraging web-scale silicon economics
- 5. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential © 2019 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 0% 100% 10G 100G 400G Platform HW Optics Optics % of Spend Will Continue to Increase As Speeds Increase WHY? Because host port costs are decreasing FASTER than optics technologies. Optics complexity increases with speed.
- 6. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Silicon investment is all in packet 6 • Investment in TDM chipsets is declining. • OTNs relevance as a switching layer is declining • Pure packet chipsets enable superior scale and smallest power per bit 0 1,000 2,000 3,000 4,000 5,000 6,000 2013 2015 2017 2019 Chipset Bandwidth in Gbps SDH OTN Packet
- 7. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential What do we need to do things differently? 7 Optics Software Silicon Systems
- 8. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 400 Gigabit Ethernet Coherent Pluggables Pluggable DCO: Digital Coherent Optics DSP + Coherent Optics • Multivendor standard • Pluggable Coherent Optic with tuneable laser • Configurable speed & reach • Maximum 20 Watts power for 400G-ZR+ • Provides the same dense port density as other optics • Delivers significant reduction in cost/bit
- 9. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential New age silicon requirements Higher Bandwidth Larger Scale Lower Power Programmable
- 10. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential The Routed Optical Networking approach Router Router Site A Site B Optical Line System Router Optical Line System Router Site A Site B Up to 80km Over 80km
- 11. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential How might this look in a metro deployment? R POI-1 R R POI-2 R R POI-3 R R DC-A R R DC-B R CDN CDN O O
- 12. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Some learnings since 2019… • Not everyone wanted to replace their optical network immediately! • Required an approach to integrate 400G-ZR into existing line systems • Needed an integrated management platform
- 13. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Integrated management via a Hierarchical Controller Optical Line System Router Optical Line System Router Site A Site B Optical Controller/EMS IP Controller/EMS Hierarchical Controller
- 14. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Improving service availability with this approach Complete Multilayer, multivendor, and multidomain topology, traffic, and services (SDN and legacy) Current automatically and ongoingly discovered – directly from the network Correlated dynamically deducing cross- domain connectivity IP Service Optical Fiber
- 15. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Quantifying the benefits Today’s typical node vs. a Routed Optical Network node: 74% less power 58% less rack space 46% TCO reduction* 57% OpEx reduction* Large core network comparison The capital expense of a Routed Optical Network node can be 60% of the cost of today’s networks Routed Optical Network Traditional Design Present mode of operation has capacity constraints Routed Optical Network increases capacity 400G 200G 100G Lower CapEx Lifecycle Savings * Source: ACG Research
- 16. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Where has this been deployed? • Australia - Multiple SPs • Metro Data Centre Interconnect • Public References • Telia Carrier • Colt
- 17. © 2022 Cisco and/or its affiliates. All rights reserved. Cisco Confidential What’s next? • We continue to develop the capability • QDD-EDFA (Miniaturised Amplifier) • High launch power optics • Work with us to model out your network