On Evolving to Dynamic Ethernet Lightpaths

across Optical Private LinesPresenter: Roderick Dottin / Orange

Date: October 6, 2015

interne Orange2

Drivers

Meeting the ever growing performance demands of value-added services with smaller and smaller margins. How can this trend be reversed?

Transparency – Legacy multi-vendor GFP encapsulated Gigabit Ethernet over VC-4-16c SDH LinksEnd-to end Performance – Carrier OA&M at OTN-encapsulated boundaries and MEF 2.0 Ethernet SOAM across Operator DomainScale – Explore Network Operator / Orange Interworking at OTUk Interface in order to extend capacity/reach of Backbone Network

interne Orange3

Hubbing Network EoSDH

8 x 1GbE

US Domain – Transparent Ethernet over SDH (EoSDH) Transport

VCG-1 (3 x AU3s); VCG-2 (7 x AU4s); …

8 x 1GbE

VCG-1 (3 x AU3s); VCG-2 (7 x AU4s); …

100 bT

1 GbE

100 bT

1 GbE

• Port-based VCAT mapping at international multi-vendor GFP encapsulation nodes

• Bundle VCG constituents of various sizes into AU4-16c paths across broadleaf network

AU4-16c AU4-16c

These virtual paths can evolve into dynamic scalable lightpaths within the core optical network

Bundling restricts max. tolerable differential VCG delay to less 108ms (before generating Ethernet framing errors)

Above approach still allows for dynamic path restoration and optical bypass capability

Ability to scale OTN client interfaces to 100G/400G and beyond

interne Orange4

Day 1 Solution – GFP Encapsulated Gigabit Ethernet over SDH

Manasquan

Tuckerton

NY/XFT6

___ South route___ North route

Miami/XFT2

TAT-14 Sud

FLAG Atlantic-1

AM-IICore Router

US Domain EoSDH

SDH Gateway

PHL/XFT1LOS OSOS

NY/XFT9

n x STM-64

n x STM-16 OJUS

Gemini / CBUS

Island Park, NY

SONET Gateway

• Downgrading TAT-14 backhaul to leased capacity will free-up ROADMs

• To scale STM-64 links beyond Day1 capacity, redeploy ROADMs within US backbone

Japan / US

6 x GbE

**:

Orange presentation

Reference Model – Infrastructure as a Service Next Gen Stack…

–

• ITSa = SDH / Sonetb = Lambdasc = Ethernet Transport

• IP services• ATM - QoS

Intelligent Optical Layer

ATM

a

b

Valu

e Ad

ded

Serv

ices

Layering Services

• Next Gen Services

• Voice Services Hubbing,

Mobile

ETHERNET

SDH / SONET OTN

VOICE INTERNET

Extracted from Ref [1], Slide 7

Orange presentation

International Access Ethernet Private Line Rollout

Carrier Pop-to-CHLS

Service Provider Pop-to-CHLS

Orange Backhaul

LL Orange Backhaul

Carrier Pop-to-CHLS

Service Provider Pop-to-CHLS

Orange Backhaul

LLOrange Backhaul

Submarine Cable

Submarine Cable

Submarine Cable

Submarine Cable

Extracted from Ref [1], Slide 9

Orange presentation

Operator B DomainOperator A Domain

Carrier OA&M at Core and Access Network Boundaries

LF

LF

LF

RF

RF

ITU-T G.709 / Y.1331(802.3ba Adopted

Baseline)

MEF 30 (Fault Mgmt per IEEE 802.3ag / Y.1731)

MAC Status Defects / Link

Fault Indication

MAC Status Defects / Remote Fault Indication

OTN BackboneRF

LF

E-NNIE-NNI

UNI UNI

Service ProviderSubscriber Subscriber

Subscriber DomainService Provider

Domain

LL Operator A LL Operator BE-NNIE-NNI E-NNI

X

E-NNI

Carrier 2.0 Ethernet SOAM support over OTN – Ref [2], [3]

interne Orange8

Handling Scale in US Domain – Leased Optical Private Network

Manasquan

Tuckerton

NY / XFT6

___ South route___ North route

Miami / XFT2

TAT-14 Sud

FLAG Atlantic-1

AM-IICore Router

US Domain EoSDH

SDH Gateway

PHL/XFT1LOS OSOS

NY / XFT9

n x STM-64

n x STM-16 OJUS

Gemini / CBUS

Island Park, NY

SONET Gateway

Japan / US

6 x GbE

**:

WAS (ASHVA)

BMM

BMM

BMM

OTUk NNI

OTUk NNI

OTUn NNI

ODUk

• Network Operator / Orange Interworking at OTUk NNI

• Deliver 2.5G, 10G Services as ODUk payloads

Orange presentation

References

Thanks !