converged ip optical solutions

8/10/2019 Converged IP Optical Solutions

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Cisco Converged IP + Optical Solutions

Moustafa Kattan,

Distinguished Systems Engineer, MEAR SP Architectur


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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public

Agenda

Problem Description and Challenges

Cisco nLight Multilayer Optimization Approach

IP+Optical Optimization Case Study

Conclusion


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Current Network infrastructure High Traffic Growth Rate (50% or greater per year)

Service Provider Revenues and Profit Challenges

Significant Cost Pressure on Infrastructure

Service Provider Challenges


5/38Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public 2010 Cisco and/or its affiliates. All rights reserved.

How Could Cisco nLight ML IP+Optical OptimiApproach Address some of these Challenges .

MATE WA

Optimizat

nLight

ROADM

nLight

Control Plane

GMPLS-UNI

Collect multi-layer network inear real-time

Optimize IP network using minformation

Perform sophisticated analyif failure scenarios


6/38Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public

The nLight ROADM Paradigm Shift

Touchless Operation

ColorlessROADM ports arenot frequency specific (re-tuned

laser does not require fiber move)

Omni-DirectionalROADM portsare not direction specific (re-route

does not require fiber move)

Contention-lecan be added/d

ports on same d

Flex Spectrumprovision the am

allocated to wav

for 400G and 1T

Complete Control in Software, No Physical Intervention

WSONWavelength Switched Optical Network


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FlexSpectrum with NG Nyquist Shaping

From 8Tb/sto 12Tb/sper fiber

Moving from 50GHz to 33GHz

Chs spacing

From4Tb/sto 6Tb/sper fiber

Moving from 50GHz to 33GHzChs spacing

From 16T

Moving fro33GHz Ch



15454 M6 & M2 ChassisTNC &TSC Processors

Single Module ROADM(s)R9.1 - Q4 2009

Enhanced Ethernet Xponder

R9.0Q1 2009

OTU2 Transponder

R 9.0Q1 2009

AnyRate Xponder

R 9.4Q4 2011

80ch, 8-Degree WXC

R9.2Q1 201040G Coherent

R9.2.1Q1 2011

Co-Propagating Raman

R 9.3Q3 2011

R9.2Q1 2010

9615216 Edge OADMs

R9.2Q1 2010

State of the Art DWDM Transport

WSON Intelligence

R9.4Q4 2011

ONS 15454 MSTP



CPAK-based 200G DWDM Line Ca

Single wavelength supporting:

- 100G QPSK (R10.1)- 50G BPSK (R10.5)- 200G 16QAM (R10.5)

CPAK supporting LR4 and SR10 clients

2nd100G client to fill 200G wavelength application comingfrom the paired MR 10G/40G Aggregation Line Card (through BP)

HD-FEC at 7% or 20% and SD-FEC at 7% or 20% providing 2x 10 -2B

PRE-FEC correction

42x 100G into 100G TXP or 200G MXP SD-FEC in a RackSupporteexisting M6 & M2 chassis

TX Signal Spectral Sharing to transport 12.8Tbps at 100G and 25.6Tbat 200G on a single Fiber Pair


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Flex Spectrum Single Module ROADMs

Improved Scalability: 25% More Ports than

16-WXC-FS

Greater Integration: ROADM + Pre-Amplifier +Booster Amplifier combined in a single line card

Better Density: From 4-slots to 1-slot per degree

Next Generation Amplification: Switchable gainpre-amplifier from 0dB to 35dB of span loss with asingle line card


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Agenda

Problem Description And Challenges

Cisco nLight ML Optimization Approach


Conclusion


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Cisco nLight Multi Layer Restoration (MLR)

There are three main types :

1. ML Bypass Optimization = MLBO

2. MLR to deal with optical layer failures = MLR-O

3. MLR to deal with IP port (or transponder) failures = MLR-P


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Multi-Layer Bypass Optimization (MLBO)

Before MLR is applied, the IP layer should be optimized

Goal: find opportunities to bypass routers and save IP transit costsApproach: size IP network for every possible router bypass and pick

saves the most.

Optical layer view

Add this

router

bypass


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nLight in Action: Multi-Layer RestorationLeverage End-to-End Control Plane, WSON Intelligence

Optical Transport

Client

Colorless, Omni-Directional ROADM switches to the best pathService is brought back up with the same Client and Optical interfaces, z

Intelligent WSON identifies new pathsROADM instructs client to re-tune its wavelength

Fiber Cut!
http://www.google.co.il/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=ywnnhPJasGFvtM&tbnid=lAAVqiTB8JxU9M:&ved=0CAUQjRw&url=http://health.howstuffworks.com/brain-pictures.htm&ei=FKM9Uan5BIqmtAbG4IHIDQ&psig=AFQjCNGITueVSEkFXZymK0p9OmMyErDluQ&ust=1363080325225748


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Cisco nLight MLR-O for Fiber Failures When a fiber fails, all links traversing that

fiber fail, but the interfaces are still good.

DWDM Layer is abstracted as its Agile,

Colorless, Omni-directional ROADMs canroute the wavelength around the failureand provides ANY to ANY wavelengthconnectivity.

Router Interfaces could be IPoDWDM orIP+DWDM to leverage Pre-FECprotection capabilities.

Good Interface

Failed Links(fiber cut) Good Interface

260G

130G

70G

Cisco nLight MLR O for Fiber Failures


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Fiber failure causes traffic to re-route atL3 using available capacity

Using Pre-FEC proactive protection,traffic can switch in less than 1millisecond

Premium traffic can be prioritized to useavailable bandwidth

Congestion may occur for low prioritytraffic for seconds (typically 20-30 sec)

260G 70G

130G

Possible congestion (20 sec)

Cisco nLight MLR-O for Fiber FailuresFirst StepPre FEC Protection

Cisco nLight MLR O for Fiber Failures


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nLight MLR, in conjunction withnLight ROADM (WSON), willrestore the failed wavelengths in afew seconds (20 sec).

The same interfaces are used, sono extra interfaces are required.

Congestion for low priority traffic

disappears

Cisco nLight MLR-O for Fiber FailuresSecond StepOptical Restoration


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Agenda




Conclusion


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11 Ps (NCS6K)

29 PEs(ASR9K)

IP Network Example of a Large EMEAR SP C


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Major EMEAR SP Present Mode of Operation

50%

Allnodes are dual homed, current threshold is 50%

During fiber cuts, traffic is protected on IP Layer protection is less

than 50 msec. No congestion at all due to the high cost policy of

allowing only 50% max utilization per link.

Back to normal after restoring the link (Could take days or weeks)


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100%

All nodes are dual homed, current threshold is 50%

During fiber cuts, traffic is protected on IP Layer protection is

less than 50 msec. No congestion at all due to the high cost

policy of allowing only 50% max utilization per link.

Back to normal after restoring the link (Could take days or weeks)


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50%

All nodes are dual homed, current threshold is 50%

During fiber cuts, traffic is protected on IP Layer protection is less

than 50 msec. No congestion at all due to the high cost policy of

allowing only 50% max utilization per link.

Back to normal after restoring the fiber link (Could take days or

weeks)

Bringing the Layers together How Major EMEAR


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MLNetwork Optimizations:

Optimalroutes after Restoretrigger cleared

StrandedBW

CongestiveSpans

Router By Pass

Hardwired Interface

Topology or nonTopology Changing

User selectabletimeframes or eventdriven

Packet'Layer'

Op- cal'Layer'Central''

Compute'ON'/'

offline'P

lug'in'

ReduceOp/CapEX,improveAvailability,increasenetworklongevity

Bringing the Layers togetherHow Major EMEARchange the PMO


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Mesh Colo

DWDM Co

WSON bas

Plane

GMPLS-UN

Enabled

Any to Any

Regenerati

up to 2000

Large EMEAR SP Customer DWDM Network Vie


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With MLR-O Optimization

80%

New utilization is 80%

Fiber cut, traffic is dynamically protected (Pre-FEC proactive protection

(typically sub 1 msec) !

High Priority traffic is not impacted ( since HPT < 20% per link). LPT

can afford congestion for 20-30 seconds (Restoration time).

Back to normal, nLight ML IP + Optical restoration will find different

optical path in 20-30 seconds

u

IP


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80%


Fiber cut, traffic is dynamically protected (Pre-FEC proactive protection

(typically sub 1 msec) !



Back to normal, nLight ML IP + Optical restoration will find different


u

IP

O O


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160%

QoS u


Fiber cut, traffic is dynamically protected (Pre-FEC proactive

protection (typically sub 1 msec) !

High Priority traffic is not impacted ( since HPT < 20% per link).

LPT can afford congestion for 20-30 seconds (Restoration time).

Back to normal, IP+Optical auto-restoration will find different optical

path in 20-30 seconds

IP


With MLR O O ti i ti


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80%


Fiber cut, traffic is dynamically protected (Pre-FEC proactive

protection (typically sub 1 msec) !



Back to normal, IP+Optical auto-restoration will find different


u

IP


MLR O C E /O E O ti i ti


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MLR-OCapEx/OpEx Optimization

CapEx & OpEx savings:

Total bandwidth cost is calculated by summing up all related costs and

then divided by utilization (Number of bits)

Related Cost: IP router ports

Transponder ports

Wavelengths

Power

Chassis

Todays Total BW cost = Total cost / 50% utilization (MAX)

With IP+Optical, the utilization can go up to 80% without any servicedegradation

30% Y over Y growth

New Total BW cost = Total cost / 80% utilization

3

Sa

Y1 Y2

IP+Optical 63 81

As of Today 100 130

0

50100

150

200

250

300

TotalBWc

ost(Unit

P

rice)

Multi-Layer Optimization & Restoration


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2013-2014 Cisco and/or its affiliates. All rights reserved.

Multi-Layer Optimization & RestorationReal World Examples, Tangible CapEx Savings

Multi-layer capacity planning model for IP

Networks over optical transport, including:

Router port bypass with ROADM

Multi-layer restoration via common IP + Optical

control plane (nLight)

Route optimization using Cisco MATE tool

Real-world CapEx modeling for multi-layer

capacity in partnership with DT & Telefonica

Joint white paper submitted to IEEECommunicationsmagazine

Result: up to 60% CapEx savings over 5

years for IP + Optical multi-layer restoration

Savings based on eliminating IP router ports,

transponder ports, wavelengths, power, chassis

0%

20%

40%

60%

80%

100%

Baseline

MLBO

IP O ti l C St di EMEAR SP C E S


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2013-2014 Cisco and/or its affiliates. All rights reserved.

IP + Optical Case Studies: EMEAR SPs CapEx S

Service Provider MLBO MLBOMLR-O

MLBOMLR-O

MLR-P

Customer 1 8% 39% 60%

Customer 2 9% 37% 58%

Customer 3 5% 37% 45%

Customer 4 0% (not considered) 31% 48%

Customer 5 0% (not considered) 15% 31%

MLBO= Multi-Layer Bypass Optical

MLR-O= Multi-Layer RestorationOptical

MLR-P= Multi-Layer RestorationPort

Savings in terms of number of required 100G interfac

Cisco ML Service SetupThe Ultimate Service Velocity Time to Market Enabler


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Zero Planning Wavelength Setup Any-to-Any designs not feasible in large networks

On the Fly optical validation

Find a

Path

Verify

Feasibility(offline)

ProvisionRequest

Request

Provisioning

via WSON

C

Request

via GMPLS UNI

Provisionwith WSON

CircuitUp

Co-ordinate

Service

Up

IP Transport

The Ultimate Service Velocity Time to Market Enabler

Agenda


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Agenda



IP + Optical Optimization Case Study

Conclusion

Moving Towards a Centralized IP + Optical SDN


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Simplest FormControl Plane (CP) leverages signaling to automadone manually today.

R ou n g D om ai n

D W D M D o m a in

R ou n g D om ai n

D W D M D o m ai n

n L ig h t C P

WSON

IP/MPLS

Const rai nt based /

intelligent service

c r e a o n

Independent IP/MPLS CP

Independent Optical CPWSON

Wall separating layers

No real information sharing

Long Service provisioning time

PMO

Open the Wall

Leverage Layered CP

Insert ML Signaling via UNI

Share Relevant Layered Info

Multi Layer CP (nLight)

Remov

Centra

Enable

Global

C L I / T L 1/

S N MP /N e

U N I..

C e nt

BW

Ca le n d a rin g

o r N OS

g pController

C l t Y O li S i E l ti


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converged ip optical solutions

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