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Submarine Cables by Niall Toh

Submarine Cables by Niall Toh



Submarine Cables by Niall Toh

Submarine Cables by Niall Toh



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    Submarine Cables by Niall Toh Submarine Cables by Niall Toh Presentation Transcript

    • Submarine Cable Unity Cable APG Cable Future Technology Roadmap November 2013, Kuala Lumpur Niall Toh
    • Agenda •  Unity Cable •  How Unity revolutionalise Submarine Cable •  The importance of a PoP to PoP cable •  Cable Fault and Restoration •  APG Cable •  APG Model and its coverage •  Advantage and disadvantage of a cable like APG •  Future Submarine Cable Technology Roadmap •  How it benefits the Community
    • 3
    • Unity Cable System Trans-Pacific 4
    • 5
    • UNITY •  Unity Cable – leading the revolution of the Pop to Pop cable build •  Carrier neutral city pops like Equinix and One Wilshire •  First hybrid cable system that does not have an incumbent carrier roadmap •  Moving away from the legacy C&MA towards a more liberal arrangement •  Benefit of upgrade roadmap •  Technology not tied to legacy carrier interfaces •  Advantage of Ethernet interface (Unity is the first to offer LAN-PHY as default built in the Trans-Pacific) •  Upgrade windows •  Capacity Entitlement and technology roadmap •  Most important, a Cable with the DNA not to be hold hostage at a Cable Station
    • Unity USTN Modesto Palo Alto San Jose Los Angeles 7
    • Question: What happen when there is a cable cut; cable fault; or dry plnat failure? Redundancy and Restoration 8
    • KDDI New Chikura Unity Japan Inter Link (JIL) A new Trans-Pacific system Softbank Maruyama KDDI Chikura (Shin-Maruyama) TPE CUCN JUS/ JUCN C2C APCN2 UNITY AJC SJC APG
    • 10
    • APG Cable •  Effectively this is APCN3 with a twist – Why not a ring cable? •  No more expensive self healing ring •  No more redundant transponders •  First D+ fibre Submarine Cable in the world •  100G and future 200G and 400G technology ready •  Utilises OADM BU for more effective traffic routing •  55Tbps Design Capacity 11
    • Demand for Linearity – Mesh Network Intra-Asia Bandwidth Supply and Demand, 2008-2012 (Tbps) Source: TeleGeography © 2013 PriMetrica, Inc 12
    • What Has Changed – from telco centric to user centric……….. •  Submarine Cable Systems/Networks are not a lot more Ethernet friendly •  Line side interface are now software configurable between SDN and LAN-PHY •  LAN-PHY is Ethernet as it is a 10GE port •  Now also available in the market are 10G and 100G interfaces •  Of course, there are also some legacy technology like 40G that are not very Ethernet friendly •  There are even now products that enables seamless subsea and terrestrial connectivity, eliminating the needs to have an additional transponder that sits at the cable station. This will substantially lower the cost while improves latency. 13
    • Ethernet capability •  Most cable systems in both the Trans-Pacific and Intra-Asia are now Ethernet enabled •  Even the older systems that already upgraded beyond 10G most likely support LAN-PHY •  LAN-PHY has become a sweet spot for Ethernet users on submarine cables •  This is mainly driven by the user profile changed in some of the major segments, including Trans-Atlantic; Trans-Pacific and IntraAsia •  OTT are now probably the largest submarine cable capacity users today and they are the drivers for change to Ethernet. 14
    • Submarine Cable Future Roadmap 15
    • Submarine Cable Technology Roadmap •  ROADM Branching Unit •  Spectra efficiency (wavelength and spectrum evolution) •  BPSK; QPSK; 8QAM; 16QAM…………… •  Improvement in spectrum from 100GHz – 50GHz – 37.5GHz – 33GHz – 25GHz •  Higher Q value •  Better FEC Gain •  Hollow Core Fibre •  Evolution in these technology transform the cost of carrying traffic •  More traffic, less cost, lowering of unit cost •  Currently already available 100G interface on Ethernet from subsea •  There are also available seamless terrestrial and subsea technology already available 16
    • While fiber evolution is at it optimal / stagnation, The secret will be in the electronics……….. How many more lights you can squeeze into an existing fiber? Reach? Cable distant? Repeater span? And not losing quality……. OSNR? Q Value?......... 17
    • An example of how future technology can improve capacity gain •  Utilizing D+ Fiber which currently is the best fiber for digital coherent technology, submarine cable can benefit and utilize the next generation 100G & 400G transponders •  With improved features such as FEC or Nonlinearity compensation, the new design submarine cables can now support upgrades with next generation transponders that increase the design capacity as shown below: * The gain will depend on the distant of the DLS where a shorter DLS will have even higher gain. An Intra-Asia system vs a Trans-Pacific system 18
    • In Another Word…………… Higher Spectral Efficiency by Denser Packing 19
    • 20
    • An example of how future technology provide security and robustness to submarine cable •  Single end power feed of upto 10,000km distant •  Recovery of unaffected traffic during cable fault Below is an example how a OADM BU with an optical by-pass 21
    • Malaysia as a fiber hub •  Probably still No but it is a step closer •  To be a hub, a country needs to have large number of cables landing •  The diversity of the cable, not just regions and coverage but ownership •  An open country where cables are easily accessible from a city PoP rather than cable station •  Not heavily regulated market •  With new non incumbent cables landing in Malaysia certain a step forward •  Not to the extent of being a hub but definitely level playing field •  Prices will be market driven and certainly 22
    • Thank you 23