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8/10/2019 Converged IP Optical Solutions
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8/10/2019 Converged IP Optical Solutions
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Cisco Converged IP + Optical Solutions
Moustafa Kattan,
Distinguished Systems Engineer, MEAR SP Architectur
8/10/2019 Converged IP Optical Solutions
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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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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
8/10/2019 Converged IP Optical Solutions
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
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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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8/10/2019 Converged IP Optical Solutions
8/38Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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
8/10/2019 Converged IP Optical Solutions
9/38Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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
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10/38Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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8/10/2019 Converged IP Optical Solutions
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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
Agenda
Problem Description And Challenges
Cisco nLight ML Optimization Approach
IP+Optical Optimization Case Study
Conclusion
8/10/2019 Converged IP Optical Solutions
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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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=13630803252257488/10/2019 Converged IP Optical Solutions
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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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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
8/10/2019 Converged IP Optical Solutions
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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
11 Ps (NCS6K)
29 PEs(ASR9K)
IP Network Example of a Large EMEAR SP C
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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
Major EMEAR SP Present Mode of Operation
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
Major EMEAR SP Present Mode of Operation
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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
O O
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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
160%
QoS u
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, IP+Optical auto-restoration will find different optical
path in 20-30 seconds
IP
With MLR-O Optimization
With MLR O O ti i ti
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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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, IP+Optical auto-restoration will find different
optical path in 20-30 seconds
u
IP
With MLR-O Optimization
MLR O C E /O E O ti i ti
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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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
Problem Description And Challenges
Cisco nLight Multilayer Optimization Approach
IP + Optical Optimization Case Study
Conclusion
Moving Towards a Centralized IP + Optical SDN
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Cisco and/or its affiliates. All rights reserved.Presentation_ID Cisco Public
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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