next gen optical solutions and architectures - cisco.com · directed to any of the degrees within...

© 2009 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 1

Next Gen Optical Solutions andArchitectures

Moustafa Kattan, Senior Consulting Systems Engineer, Cisco.


Agenda

NG DWDM Introduction

NG DWDM Technology Enablers

Packet Optical transport over DWDM

GMPLS & DWDM Photonic Layer Control Plane Considerations

Future Tends

IP-MPLS

Ethernet

DWDM

Solution

Cost


Growth is driven exclusively by DataZettabyte Era Video and Visual Multimedia content rapidly penetrating growing set services, driving networkbandwidth and video content aware network infrastructure

Legacy applications moving to IPVideo – SD, HD, Broadcast CableVoice

New applications exclusively IPVideo - On Demand, DVRs, Switched Digital, Video conferencing …Audio – Streaming audio, Internet radio, Digital juke boxes,etc….High-Speed Data, InternetOver-the-Top Content providers—i.e., YouTube

Household Bandwidth Needs in 2010 (U.S.):Applications: HDTV + SDTV + PVRs + HSD + VoIP-PhonesTwenty such homes would generate more traffic than traveled the entire Internet backbone in 1995

0

25,000

50,000

2005 2006 2007 2008 2009 2010 2011 2012

PB/m

o MobilityBusiness InternetBusiness IP WANConsumer InternetConsumer IPTV/CATV

46% CAGR 2007–2012


Converged NGN Transport

Packet layer convergence to IP/MPLS has delivered CapEx & OpEx savings in core networks

WDM layer convergence has enabled CapEx & OpEx savings in multi-service metro networks

Significant additional Significant additional CapEx/OpEx saving can be CapEx/OpEx saving can be delivered by converging the delivered by converging the IP and optical layers!IP and optical layers!

Video

Voice Data

IP / MPLS

TDM

DWDM

λ servicesSAN Other

Data Voice


NG Access in future Carrier Ethernet Distributed architecture with node extension

NMS Service ManagementSEF EMSACS Performance ManagementAAA, DHCP, DNS,

OAM Subsystem

Aggreation NetworkMPLS/IP or MPLS-TP

O/ DWDM

Carrier Ethernet Aggregation

Core NetworkIP / MPLS

VoD

Content Network

TV SIP

VoD

Content Network

TV SIP

IP Edge Multiservice Core

MPLS/IPoDWDM Optical Network

Core + E-MSE

Core + MSE

Business

Corporate

Residential

STB

Residential

STB

Residential

STB

Business

Corporate

2G/3G/4G Node

RBS

BSC/RNC

BSC/RNC

MPLS-TPO/ DWDM

NG Access Sat./Xponder




RAN Access NetworkMPLS/TP

2G/3G/4G Node

RBS

CRS

ASR-9000

Aggregation Node

Aggregation Node

NGXP

Distribution+ BNG

Distribution+ BNG


Network architecture

IP NGN /

Carrier EthernetDC/SAN

SONET

SDH

DSLAM /

Wireless

backhaul

Any Transport over DWDM

Control

Control

Control

Control

Control

IPoDWDM / EoDWDM

IPoDWDM / EoDWDM

Control


iDWDM

Zero-Touch ImplementationProvisioningRearrangementProtectionDynamic Bandwidth On-Demand

Control PlaneWavelength Switched Optical NetworkNetwork Becomes the Planning ToolInteraction with MPLS, MPLS-TP and OTN

Realizing the Potential of Intelligence

Expand Network FlexibilityExpand Network Flexibility

20 ROADM Multi0 ROADM OLA T-DCU

Touch-Less OnRamp

Touch-Less OnRamp


Agenda





Future Tends

IP-MPLS

Ethernet

DWDM

Solution

Cost


Key Enablers for Next Generation DWDM

Tunable Network—An optical network where optical channels can be moved and changed to different wavelengths completely via software

Omnidirectional—The ability to have a fixed fiber port interface directed to any of the degrees within the ROADM node

Colorless—Applies to lasers, multiplexers, demultiplexers, and receivers. It is the ability to change the wavelength aspects of these devices without moving any physical fibers


Tunable Laser—Full Band

Tunable Mux (Colorless, Omnidirectional)

Tunable Dispersion Compensation

Tunable Gain

Tunable Demux

Tunable Receiver

Tunable End-End

G

TDC

G

TDC

TX RX


Reconfigurable OADM (R-OADM)

Total flexibility—drop an λanywhere, anytime

ROADM provides operational simplicity

No network reengineering for system growth

Nodes scalable from one to 32–40 wavelengths; efficient linear and DWDM rings

Increased service velocity—no need to visit intermediate sites (OpEx)

Low-cost pass-through of wavelength that do not need to drop at a site (CapEx)

Scaleable technology and wavelength path provisioning

2º; static direction, fixed color on add drop ports

Planar Lightwave Circuit (PLC) silicon for WSS and demux [iPLC]All channels dropped, add/pass thru possible via E-O switchesBlocker, mux, DGE, OPM, VOAs, PD, electro-optic switches on single chip

Drop

Drop

Pre Amplifier

Add

iPLC

Add

Post Amplifier

iPLC

Demux

Demux

Pre Amplifier

Post Amplifier

80/20

80/20


Omnidirectional—Network Flexibility

Another flexibility point in the network is directionality

Directionality is the ability, in software, to redirect a channel local to a mesh node to any of the multi-degree directions

Leverage the mesh node for both degree termination and flexible add/drop

ROADMWest

ROADMEast

Directional ROADM

ROADMWest

ROADMEast

Directionless ROADM

NxN Switch FabricNxN Switch FabricNxN Switch Fabric


Colorless—Network Flexibility

Connecting a Transponder to any port of a filter with no idea of what wavelength

This is colorless

Changing wavelengths on the fly without considering port connectivityThis is colorless

Entering a regen on one wavelength and leaving another independent of connectivity

This is colorless

ColorlessDeMux

ColorlessMux

……………………………..1 N

……………………………..1 N

he ability and flexibility to change a wavelength on the fly, this is COLORLES


Omni-Haul iDWDM Solutions from Cisco

Robust Distance Independent ToolboxROADMAmplificationService MappingTunable Components

AdvantagesTake Edge, Metro, Regional, Long-Haul concepts off the tableEconomies of one platform to address wide scale DWDM needs.Change the way circuits pass from the Edge Metro Regional Long-Haul

One Network – One DWDM Platform


Edge DWDM Service Delivery

Fixed λ XFP2.5G TXP / MXP

C-Band Tunable XFP

MLSE 10G Service Multiplexin

g

Broad Product Selection to Address Price and/or Performance

Can Mix and Match different Wavelength Multiplexing & Service Multiplexing Options

Multi-Protocol Service Deliverer

CWDM XFP


Agenda





Future Tends

IP-MPLS

Ethernet

DWDM

Solution

Cost


M66 RU

End to End Solution

• ASR9K- Packet Transport

• M6/M2 – NGXP Packet transport,

ROADM, ADMoBlade,

Trans/Mux Ponders• M12 – ROADM, Xponder, Trans/Mux

Ponders, MSPP

• Service Convergence to a

common Transport layer

• Packet optimized • CTC/CTM Packet,

TDM & WDM Management on M2,

M6, M12

Lower Capex/Opex NG Transport

• IPoDWDM & Packet Transport integrated

w/ ASR9K • Ethernet/TDM/ Lambda services

• Point to point and Multipoint services

M22 RU

M1211 RU

ASR9K

¼ rack

ASR9K1/2

rack

Packet Optical Transport Solution


IP NGN Carrier Ethernet Design Integrated Optimized Packet Transport

IPoDWDM from Core to AggregationCRS-1, 12K, 7600, 15454 MSTP50ms Resiliency G.709 FEC

Optimizing Packet Transport in AccessEthernet Access AggregationE-FTTH, DSLAM, PON, CableMExxxx, Cat4500, 76xx15454 Ethernet XPonders50ms ResiliencyG.709 FEC

High Bandwidth Services Data Center , Storage, Disaster Recovery15454 Ethernet XPonders (nX10G)50ms ResiliencyG.709 FEC

4x10GbE XPonder

15454 MSTP

76007600

15454 MSTP

IP/MPLS

IPoDWDM

15454 MSTP

7600Native

Ethernet

EoDWDME-FTTx

DSLAMs

PON OLTs

CMTS

15454 MSTP

EoDWDM

15454 MSTP

15454 MSTP

10G 10G


ONS 15454 Native Ethernet solution Carrier Class Ethernet

Enabled by Xponder cards

ELINE and ELAN service termination

L2 access/aggregation rings over dark fiber or WDM

Sub 50ms restoration times (GR3 Protection)

Conformance to MEF service and QOS definitions.

850nm 1310nm / 1550nm

10GE ring w/Colored or grey optic

…

NxGE

…NxGE

…

NxGE

…

2 x10GE

Ethernet Access/Aggregation

rings

Today


Rich Service Level ConfigurabilityService awareness – 802.1Q/ad, Inner & Outer Tag Manipulation (Add Double,

Add+Translate; 1:1, 1:2, 2:1); 4096 CVLAN per port, Per CVLAN COS MappingService level flexibility and scalability - per VLAN MAC enable-disable, 32K

MAC, Per port or SVLAN ingress rate limitService level management – A to Z Service, QoS Ingress & Egress PolicingService level OAM - Y.1731 Ethernet OAM-AIS message per SVLAN

Video OptimizedOptimized network utilization (IGMP V2 snooping)SP Video VLAN Separation (Multicast VLAN registration)

Industry Leading ResiliencySub 50 ms L2 service protectionChassis Redundacy - 1+1 Protection in different shelvesCard Redundancy - 1+1 Protection in same shelf

DWDM Transport ReadyPluggable Grey or DWDM Trunks (G709 OTN FEC/EFEC) – C-band

Tunability (R9.1)Pluggable SFP clients

XPonders

Ethernet XPondersCarrier Ethernet innovations for access and aggregation

20xGE Client+2x10GE Trunk

2x10GE Client+2x10GE Trunk

R9.0


Next Gen DWDM IPoDWDM and Control Enabler

IPoDWDM reduces CAP EXLess components, shelves,

processor cards, etc…

IPoDWDM reduces OP EXLess shelves, less rack space,

less power, simplifies trouble shooting, etc…

IPoDWDM enhances Resiliency

Less Opto Electronic Components, enhanced fault recovery features, etc…

Control Plane DevelopmentsVirtual TransponderSRLG awareness

CRS-140G

DWDMTXRX

CRS-1/12k/7600

10GEDWDM

Existing Transport

10GE-ITU

OC768-ITU(ODB)

TXRX

TXRX

TXRX

TXRX

TXRX

Existing Transport

CRS-1

CRS-1/12k/7600

40GDWDM

10GEDWDM

10GE Transponder

OC768 Transponder

10GELAN Phy

OC768-SR

TXRX

TXRX

PMO

IPoDWDM

G.709

G.709


Introducing: IPoDWDM for the approaching Zettabyte EraDoubling Reach, Extending beyond Core, Zero Touch

December 2005

Today

Core

CRS-1

AggregationEdge

XR 12K/12K

Aggregation Edge

XR 12K/12K

40G IPoDWDM 1000 Km

Cisco 7600

CRS-1

Zero-touch for intermediate nodes Cisco 7600

ONS 15454 MSTP

Core

CRS-1

AggregationEdge

XR 12K/12K

Aggregation Edge

XR 12K/12K

2x Reach: 40G IPoDWDM 2000 Km

Cisco 7600

CRS-1

Zero-touch for ALL nodes

Cisco 7600Extending IPoDWDM

ONS 15454 MSTP


IPoDWDM: Re-setting the Standard for QoE With Proactive Protection: IP Trumps SONET/SDH

Signal Impacted

Backhoe stretches Fiber

Total Signal

Loss

Signal Degradation

Signal Degradation Triggers Re-Route Before

Complete Fiber Cut Data Center Data Center

Video Video

0-15 ms

Innovative early detection triggers failover on signal degradation, not loss3x Faster recovery (<15ms) than SONET / SDH standards for near hitless video experienceUnsurpassed reliability protects mission-critical data from loss

Backhoe cuts Fiber

© 2009 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 24© 2007 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 24

More than 500 IPoDWDM line-cards shipped

IPoDWDM Momentum

Internal Only, Please Do Not Forward

Kazakh Telekom, KazakhstanComcast Cable, USA Embratel, Brazil

TENET, South AfricaeThekwini, South Africa

China Netcom, China

CAT Telecom, Thailand

Kuwait Information NetwortLebanon

TeliaSonera, Sweden

Sprint, USA

CENIC, USABTC

QTel


Agenda





Future Tends

IP-MPLS

Ethernet

DWDM

Solution

Cost


Next Generation Transport architecture

IP NGN /

Carrier Ethernet

Any Transport over DWDM

Control

Control

SONET

SDH

OTN XC

Control

DC/SAN

Control

IPoDWDM / CEoDWDM

IPoDWDM / CEoDWDMControl


Standards Bodies and Organizations

Charter: Global Telecom Architecture and Standards

Member Organizations: • Global Service Providers• PTTs, ILECs, IXCs• Telecom equipment vendors• Governments

Charter: Global Telecom Architecture and Standards

Member Organizations: • Global Service Providers• PTTs, ILECs, IXCs• Telecom equipment vendors• Governments

Charter: Evolution of the

Internet (IP) Architecture

Active Participants: • Service Providers• Vendors

Charter: Evolution of the

Internet (IP) Architecture

Active Participants: • Service Providers• Vendors


Wavelength Switched Optical Networks (WSON) Standards Status

Optical Impairment UnawareWSON Framework CCAMP WG DocumentRWA Information Model CCAMP WG DocumentRWA Information Model Encoding CCAMP WG DocumentSee CCAMP – http://www.ietf.org/html.charters/ccamp-charter.html

Optical Impairment Aware Work Group DocumentSee http://www.ietf.org/id/draft-ietf-ccamp-wson-impairments-00.txt for some of these.


ASONASON is the control plane for SDH (HO, LO, Section), PDH (Path, Section) and OTN (Digital & Optical Path, Digital & Optical Section) layer networks.

Typically limited to legacy aggregation only

Other clients (e.g. Ethernet) can be supported through an Adaptation Function.

Acceptable for (low-speed) TDM traffic, may be a client layer for legacy TDM NEs on a newer Optical Control Plane.

Can‘t work for DWDM (no impairment aware)


What should an optical control plane do?

L1L2

L3

L4

L5

L6

L7

L8

L9

L10L11

L12

L13 L14

L15

L16 L17 & L18 (l)

WLC

R1R2

R3

N2

N1

N3

N4

N5

N6 N8

N7RouterFixed OADMMultidegree ROADMMultidegree ROADM(omnidirectional)

Increasing Complexity


TDM LSPTDM LSP

Packet LSPPacket LSP

End to End Control Plane

Unified Control PlaneGMPLS

IP Routing ProtocolsWith Extensions

OSPF

Label Distribution ProtocolsRSVP TE

MPLSRSVP TE

Forwarding Plane

PSCDomain

GMPLS Domain

TSCDomain

WSON

LSCDomain

Optical

SONETSDH OTN NE

λ Switch

λ Switch λ Switch

λ Switch

Router

Router

Router

Router

SONETSDH OTN NE

SONETSDH OTN NE

RouterRouter

RouterRouter λ Switch

λ Switch

λ Switch

λ Switch

Nested LSPs

Lambda LSPLambda LSPTDM LSPTDM LSP

Packet LSPPacket LSP

Router

Router

RouterRouter


GMPLS w/ Advanced Optical Control Plane

1. Request connection from A to C by optical user (via EMS) orIP user (via CLI), specifying:

Ports at both ends (optional)Route diversely from a set of links (subnets)Route the same way as another link (part of link bundle add/remove?)

2. The network will find ports at A & C as well as an optical path that respects these SRLG constraints

3. The network will then set up that path end to end

(b) Good MappingA

B

C A

B

CXL3 Topology L0 Topology (a) Bad Mapping

Y

Operator Initiated Bandwidth Request Helps Solve the Earlier Example


5 nodes, 14 links28 interfaces

5 nodes, 7 links, 5 flex i/fs

19 interfaces

Optical Auto-BandwidthNetwork Savings

TodayNeed to over-provision to ensure capacity exists when IP needs it. Need to do it everywhere since location of surge is unknown

Auto-BandwidthExtra interface per node can be deployed when a link becomes congested. No need to over-provision per link

Spare i/f -currently unused

Spare i/f reinforcing congested link

Under-utilized

links


Oakland

Fremont

Pleasanton

San Francisco

Burlingame

Hayward

Santa Rosa

Fairfield

A

B

CD

AB

CD

San Jose

Palo Alto

Berkeley

TDM XC

DWDM Layer

40G Lambda Example with ASON Restoration

•40G XC at Each Site (ex 10X40G Links)

•No Pass through. All Add drop

•Large XC Capacity

•DWDM Layer is anyways there

• Why Additional Redundant TDM Layer ?


Cisco WSON

http://wwwin.cisco.com/data-shared/sptg/cmtsotbu/optical/webupdate/uploads/davbianc-ATOD-control-plane-strategy-v3.2.0-060509.doc


Oakland

Fremont

Pleasanton

San Francisco

Burlingame

Hayward

Santa Rosa

Fairfield

A

B

CD

AB

CD

R

AToDWDM Control Plane (Cisco WSON)

•Impairment Aware DWDM Control Plane•Switch when you can (Lambda Switching)•Regen when you must•No XC, No Redundant Layer•No additional Latency•Lower Cost


Agenda





Future Tends

IP-MPLS

Ethernet

DWDM

Solution

Cost


Cisco’s 100G Transport Development EffortsSingle Cisco Development Effort

Leading standardization effort within OIF (eco-system)- Driving Supplier base and supply continuity (multiple Vendors)- Compatibility among system Vendors in progress

Architecture of the solution- Separate Client and Trunk cards- Trunk card enables Transponder, MuxPonder and Regeneration

Supported Data Rates- OTU-4 trunk as per ITU-T G.709 standard- Multiplexing of 10x10G (10GE, STM-64, 10G FC, OTU-2)- Multiplexing of 2x40G (STM-256, 40GE, OTU-3) plus 2x10G

(10GE, STM-64, 10G FC, OTU-2)- OTU-4 /100GE Native


Cisco’s 100G Requirements100G over 10G Infrastructure

Use same Trunk interface of CRS-1

Unregenerated 1,500km ReachCascade more than 20x 80Chs ROADM30ps PMD robustness to cope with bad fiber

Capable to upgrade an already installed 10G/40G network without any change on existing equipment

next gen optical solutions and architectures - cisco.com · directed to any of the degrees within...

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