game changing multilayer networking - tnc 2017
TRANSCRIPT
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ECI Proprietary
GAME CHANGING
SOFTWARE DEFINED
MULTILAYER
NETWORKING
Hayim Porat
CTO
TNC Linz, June 2017
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ECI Proprietary 2
CURRENT SITUATION – ROUTER VIEW
Routers know with whom they are
connected, but have no idea how
they are connected.
Each router needs additional ports
and connections as backup in the
event of optical network failures.
Logical router
connections
Opaque
Optical Network
Physical router
connections
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ECI Proprietary 3
CURRENT SITUATION – OPTICAL VIEW
The optical transport network pairs up
interfaces across geographic distances,
but has no knowledge of the services
being carried.
Opaque
Services
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ECI Proprietary 4
Abstract view of
network resourcesIntent driven
network control
SDN Multilayer
Orchestration and Applications
Packet
layer
Logical connection
Packet Domain
Controller (PDC)
Optical Domain
Controller (ODC)
Physical
connectionOptical
layer
Abstr
act vie
w
Inte
nt contr
ol
SOLUTION:
SDN CONTROL
• Combines services
and connection views
• Basis for Multilayer
• Provisioning
• Restoration
• Optimization
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ECI Proprietary 5
BA
COMBINED SDN MULTILAYER VIEW
Routers can use the optical network
to manage restoration.
This reduces the number of
expensive router ports and
associated optical connections.
We can do more with less.
Physical router
connections
Logical router
connections
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ECI Proprietary 6
SDN MULTILAYER NETWORKING PROMISE
Fast Service Provisioning• Increase customer responsiveness
• Network-as-a-Service (Naas) and
bandwidth-on-demand services
Dynamic Service Restoration• Reduces reliance on dedicated protection
• Additional mechanism to guarantee SLAs
Multilayer Network Optimization • Serve aggregated traffic demand with
fewer resources
• Capex savings
Network Automation• Eliminate human errors
• Opex savings
• Advanced IoT and M2M services
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ECI Proprietary 7
SO THE FUTURE SEEMS BRIGHT?
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ECI Proprietary 8
REALITY HAS
ROADBLOCKS
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ECI Proprietary 9
SDN Never Happened
• Being able to configure your
network using (some sort
of) abstract API does not
make them software defined
• OpenFlow offered both and
control plane and (to some
degree) data plane
programmability but never
caught on
• P4 is not in a better shape
• Netconf/YANG is not SDN
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ECI Proprietary 10
Abstract view of
network resourcesIntent driven
network control
SDN Multilayer
Orchestration and Applications
Packet
layer
Logical connection
Packet Domain
Controller (PDC)
Optical Domain
Controller (ODC)
Physical
connectionOptical
layer
Abstr
act vie
w
Inte
nt contr
ol
“NNI GAP” EXISTS
• Different vendors usually
supply the packet and
optical layers
• Effective SDN multilayer
orchestration requires
exposing the optical (OCH)
NNI data model
• Today this information is
proprietary, due to optical
networking “complexity”
NNI Gap
Proprietary
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ECI Proprietary 11
Domain A Domain B
E-NNI
Gap
“E-NNI GAP” ALSO EXISTS
• Multi-domain multilayer requires sharing E-NNI info between SDN orchestrators
• Being addressed by Life Cycle Service Orchestration
Logical connection
Physical
connection
E-NNI Info
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ECI Proprietary 12
WAY FORWARD
Optical Domain
Controller (ODC)
Optical
layer
Abstr
act vie
w
Inte
nt contr
ol
Proprietary vendor-specific
data model
Optical Domain
Controller (ODC)
Optical
layer
Open standard data model
Abstr
act vie
w
Inte
nt contr
ol
Single Packet/Optical Vendor
Multilayer SDN OrchestrationMulti Packet/Optical Vendors
Multilayer SDN Orchestration
Proprietary Open
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ECI Proprietary 13
ECI POSITION
• Committed to a multilayer,
multidomain, multivendor
SDN ecosystem, based
on code and not (just)
standards
• Have already shared an
ODU model with ONOS,
and are prepared to open
our optical model as well
• Will not happen without
market pull
Planning & Operations
Applications
Abstract view of
network resourcesIntent driven
network control
OSS / NG-OSS / End-to-End Orchestration
LightCONTROL
SDN Orchestrator
Domain Controllers (ECI / 3rd party)
Multidomain MultivendorMultilayer
Modern PaaS
Microservices platform
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ECI Proprietary 14
SUMMARY
• Huge potential benefits from
multilayer SDN-control
• To achieve full potential
optical vendors need to
create and expose a
standard OCH data model
• Particularly needed for
“proactive” control
• Time is against us
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ECI Proprietary
THANK YOU!