Check out Stephan Rettenberger’s presentation from the Next Generation Optical Networking Conference in Monaco. It's all about Software Defined Optical Networking.

1. Stephan Rettenberger, Monaco June 2013
Software-Defined Optical
Networking
Transforming the Network into a
Programmable Virtualized Resource

2. © 2013 ADVA Optical Networking. All rights reserved. Confidential.22
SDN: Hype and Reality?

3. © 2013 ADVA Optical Networking. All rights reserved. Confidential.33
The Big Picture – Do The Stars Align?
Software-Defined
Networking
Cloud Services &
Big Data
“In a few years,
we can expect the
communications industry
to look and feel similar to
the IT industry.”
Network Function Virtualization
Operator Paper, Oct. 2012
“SDN is possibly the
biggest shift in telecoms
in 30 years…
The network is finally
the computer.”
M. Finnie, Interoute,
Oct. 2012
Mobile
Broadband
“Mobile data traffic will
increase 13-fold between
2012 and 2017. There will
be over 10 Billion mobile-
connected devices in 2017.”
Cisco Visual Networking Index,
Feb. 2013

4. © 2013 ADVA Optical Networking. All rights reserved. Confidential.44
Enabling SDON Technologies

5. © 2013 ADVA Optical Networking. All rights reserved. Confidential.55
Coherent 100G Express Layer
Next ten-fold capacity increase will be challenging to obtain.
• 10x spectral efficiency of 10G
9.6 Tb/s system capacity
• DP-QPSK & high-gain SD-FEC
Only ~2 dB OSNR loss over 10G
• DSP-based CD/PMD compensation
2500 km+ w/o optical compensation
• Intradyne receiver
Tunable filter function in ROADMs
• Hybrid Raman/EDFA amplification
4 dB+ OSNR gain over EDFA only
Real-time 100G performance with 40 nm DSP
x-Pol y-Pol

6. © 2013 ADVA Optical Networking. All rights reserved. Confidential.66
Software-Defined Transceivers
Configurable super-channels can optimize capacity and reach.
Relative required OSNR in dB
DataRateinGb/s
0 3 6 9 12
200
150
100
50
-3
4-QAM
BPSK
8-QAM
16-QAM
0
Distance in km
300
250
2500 1250 625 312 1565000
Symbol rate is additional parameter:
• 400G can leverage 100G (~30GBd)
• 1T needs more disruptive solutions

7. © 2013 ADVA Optical Networking. All rights reserved. Confidential.77
Flexible Grid Approach
• 400G/1000G requires >50 GHz slots
• ITU-T Rec. G.694.1:
• Variable frequency slots
• 12.5 GHz slot increments
• 6.25 GHz frequency grid
• Efficiency gain with denser packing
Trade-off exists between spectral link efficiency & network fragmentation.
A
B
C
L1
L3
Fixed WDM Grid
Flexible WDM Grid
Increased spectral
link efficiency
2.
1.
3.
Stranded spectrum  reduced
spectral network efficiency

8. © 2013 ADVA Optical Networking. All rights reserved. Confidential.88
Programmable ROADM Layer
Simplified operations: More flexibility & automation, fewer card types.
Directionless
Directionless/
Colorless/
Flexible Grid
Fixed
Directionless/
Colorless
Directionless/
Colorless/
Contentionless/
Flexible Grid
• Fixed -grid
Add/drop ports:
• Fixed direction
• Fixed color
• Fixed -grid
Add/drop ports:
• Any direction
• Fixed color
• Fixed -grid
Add/drop ports:
• Any direction
• Any color
• 1x per branch
• Flexible -grid
Add/drop ports:
• Any direction
• Any color
• 1x per branch
• Flexible -grid
Add/drop ports:
• Any direction
• Any color
• Any port
ROADM
TX
MUX
λ1
λ2
ROADM
TX
MUX
λ1
λ2
λ3 ROADM
TX
WSS
λ1
λ2
λ3
λ1λ2λ3
ROADM
TX TX
A/D SWITCH
λ1 λ1λ3
λ1
λ3
λ1ROADM
TX
WSS
λ1
λ2
λ3
λ1λ2λ3

9. © 2013 ADVA Optical Networking. All rights reserved. Confidential.99
The SDON Cockpit
Courtesy of
G. Wellbrock, Verizon

10. © 2013 ADVA Optical Networking. All rights reserved. Confidential.1010
• Constrained-based path computation
• Path & equipment constraints
• Wavelength constraints
• Optical constraints (OSNR, power, …)
• Optical layer automation
• End-to-end path provisioning
• Optical power equalization
• Optical path restoration
• Multi-layer operation
• Service activation across layers
• Exchange of topology information
• Virtual topology concept
Automated Service Routing
Optical GMPLS Control Plane
Makes optical layer operation as simple as electrical layer operation.

11. © 2013 ADVA Optical Networking. All rights reserved. Confidential.1111
Software-Defined Networking

12. © 2013 ADVA Optical Networking. All rights reserved. Confidential.1212
Software-Defined Networking
Turning the network into a programmable resource.
Network
services
Platform
services
Extensions
e.g. OpenFlow,
Netconf/YANG,
vendor-specific
Open APIs
(e.g. RESTful)
Network AppsNetwork AppsNetwork Apps
Network
Apps
Network
AppsUser I/Fs Orchestration Applications & derived
network services
Open Northbound
Interfaces
SDN Controller
Platform
Southbound
Interfaces
Network Elements

13. © 2013 ADVA Optical Networking. All rights reserved. Confidential.1313
• Deterministic behavior,
predictable
performance, rapid
convergence
• Simplified
planning, global
optimization,
off-line analysis
• Secure multi-tenancy &
infrastructure sharing
• Better machine &
service mobility
• Application-driven
networking
Network
programmability
HW abstraction
and virtualization
Centralized
management & control
Flow oriented
data plane
SDN Principles & Benefits
Separation of data
and control plane
Key SDN innovations: virtualization and application-level programmability.

14. © 2013 ADVA Optical Networking. All rights reserved. Confidential.1414
Virtualization in Data Centers
Virtualization is a key concept to pool servers, storage and appliances
and share them in a flexible and dynamic way.
Virtual
computeVirtual
network
Virtual
storage
Orchestration of IT & network resources
Storage pool Fabric interconnect Server pool

15. © 2013 ADVA Optical Networking. All rights reserved. Confidential.1515
Virtualization Use Cases - WAN
Bandwidth calendaring Cloud bursting
Secure multi-tenancyWorkload balancing
Transactional nature of DC-to-DC traffic (bulk data transfers)
offers opportunities for bandwidth-on-demand.
Cloud DC
Private
Datacenters
Tenant 1
Tenant 2Load Load

16. © 2013 ADVA Optical Networking. All rights reserved. Confidential.1616
Cloud Bursting Example
Tasks:
• Storage Migration
• Storage Replication
• VM Cluster Migration
• Distributed Application
Optical WAN is used as programmable interconnect fabric.
Optical ADVAntage: Low latency, high transfer speed, guaranteed performance.
Optical WAN
Flexible 10G ’s
Regional Data Center
AppApp App
Cloud Orchestration
Private Data
Center B
AppApp App
WAN Orchestration
Speed Duration
10G 15 min
1G 2.5h
100M 1 day
Private Data
Center A
AppApp App
Cloud Orchestration
1TB Data Transfer

17. © 2013 ADVA Optical Networking. All rights reserved. Confidential.1717
Trials & Testbeds

18. © 2013 ADVA Optical Networking. All rights reserved. Confidential.1818
OFELIA Multi-Layer Testbed
Multi-Domain & Multi-Technology Packet over Fixed/Flexi Grid
Published : ECOC, October 2012
• OFELIA Project. OpenFlow in Europe - Linking Infrastructure and Applications
• Multi-domain, Multi-Layer OpenFlow controlled Packet over Optical network

19. © 2013 ADVA Optical Networking. All rights reserved. Confidential.1919
Telefonica Dynamic Network Field Trial
• Juniper MX-80 routers, ADVA FSP 3000 WDM
• Fully automated dynamic bandwidth-on-demand driven by router load variations
• Advanced Network Architectures Lab, Technical University of
Catalonia, Juniper, ADVA Optical Networking
Published : OFC/NFOEC, March 2013

20. © 2013 ADVA Optical Networking. All rights reserved. Confidential.2020
MARIST: Dynamic Infrastructure Test Bed
VM Cluster
ADVA FSP
3000 Site A
Site C Site B
ADVA
FSP 3000
ADVA
FSP 3000
StorageStorage
IBM V7000
Storage
dual
10G
dual
10G
dual
10G
dual
10G
IBM G8264
OF Switch
IBM G8264
OF Switch
Floodlight
Controller
OpenDayLight
Controller

21. © 2013 ADVA Optical Networking. All rights reserved. Confidential.2121
VM Cluster
Dynamic Infrastructure Test Bed
ADVA FSP 3000
Site A
Site C Site B
ADVA
FSP 3000
ADVA
FSP 3000
StorageStorage
IBM V7000
Storage
dual 10G dual 10G
dual 10G dual 10G
IBM G8264
OF Switch
OpenFlow
OpenFlow Controller (VM)
• Floodlight
• IBM Controller
• OpenDaylight
ADVA OpenFlow Agent (VM)
• OpenFlow v1 northbound
• ADVA control plane southb.

22. © 2013 ADVA Optical Networking. All rights reserved. Confidential.2222
Network Controller Functions
SDN Controller
(e.g. OpenDaylight)
Packet / Optical connectivity
Standardized API
WAN applications:
Datacenter to WAN
applications
Cloud Computing
Controller
(e.g. OpenStack)
datacenterOptical WAN
Datacenter applications:
App
WAN
Orchestration
App
App
App
Datacenter
Orchestration
App
App
SDN Controller for datacenter and WAN connection management
Cloud Computing Controller for Compute / Storage

23. © 2013 ADVA Optical Networking. All rights reserved. Confidential.2323
SDN for Dynamic SP Infrastructure
• Provisioning for peak traffic is losing battle, and only getting worse.
• Answer is dynamic network infrastructure.
Daytime Configuration
 All Offices/Sites working
Nighttime Configuration
 Backup between A/B
 Double the bandwidth
Other Configurations
 Site B to C
 Site C to A
Site A
Site B
Site C
1x 10G
1x 10G
1x 10G
Site A
Site B
Site C
2x 10G
Site A
Site B
Site C
2x 10G
Site A
Site B
Site C
2x 10G
Site A
Site B
Site C
1x 10G
1x 10G
1x 10G

24. © 2013 ADVA Optical Networking. All rights reserved. Confidential.2424
• Storage Migration — making a copy of the data store in the enterprise data center
and transferring the file(s) to the provider data center, either as backup, or as a precursor
to active-active replication.
• Active-Active Storage Replication — keeping a data store in both the enterprise and
provider data centers consistently synchronized, by writing through cache simultaneously
to both locations.
• Virtual Machine Migration — transferring the CPU state and memory image of one or
more applications running on virtual machines, from a server in the enterprise data
center to one in the provider data center, allowing dynamic server capacity expansion, or
even fundamental business continuity through Active-Active data center or application
failover.
• Distributed Virtual Application — communications between the virtual components
that comprise a particular application instance such as between virtual machines or
between a virtual machine and its associated data store, such as when web and
application servers are placed in the cloud, but the database server is secured in the
enterprise data center to ensure regulatory compliance.
IBM/Marist SDN Lab Use Cases

25. © 2013 ADVA Optical Networking. All rights reserved. Confidential.2525
Summary
• SDN turns networks into a programmable virtualized resource.
• Starting from data centers, it will also extend into the WAN.
• Prospects: More network efficiency & automation, new services.
• SDN & OF are still at the beginning of their lifecycle,
SDON enabling technologies are maturing
ADVA Optical Networking
• … was first with optical OpenFlow,
• … is actively engaged in the standardization of transport SDN
• … is actively conducting multiple trials / testbeds
• … is joining OpenDaylight consortium

26. srettenberger@advaoptical.com
Thank you
IMPORTANT NOTICE
The content of this presentation is strictly confidential. ADVA Optical Networking is the exclusive owner or licensee of the
content, material, and information in this presentation. Any reproduction, publication or reprint, in whole or in part, is strictly
prohibited.
The information in this presentation may not be accurate, complete or up to date, and is provided without warranties or
representations of any kind, either express or implied. ADVA Optical Networking shall not be responsible for and disclaims any
liability for any loss or damages, including without limitation, direct, indirect, incidental, consequential and special damages,
alleged to have been caused by or in connection with using and/or relying on the information contained in this presentation.
Copyright © for the entire content of this presentation: ADVA Optical Networking.