programmability at optical transport layer...2014/10/26 · controller rest api customer console...
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1 | Infinera Confidential & Proprietary
Programmability at Optical Transport Layer
Joint Session of Dante and Infinera: Multi-Layer SDN for Ultimate Flexibility in R&E Networks
Speaker: Guy Roberts, DanteSoumya Roy, Infinera Corporation
Soumya Roy, Infinera Corporation
2 | Infinera Confidential & Proprietary
Transport SDN use case for R&E Networks
LHCTier2 site
Tier1 site InfineraOTS controlled
MEF L2 Services
Tier1 site
SDN controller
Application
OF/REST
MEF L2 Services Pool of OTN B/W Pay as you grow B/W OTS REST API to manage connectivity
3 | Infinera Confidential & Proprietary
Transport Network-as-a-Service
Customer-Y
Customer-Y
Customer-Z
Customer-Z
Internet
Carrier SDN Controller
REST API
CustomerConsole
Access viaWeb-browser
L1/L0 NE
Customer-X
Customer-X
Customer X
B
D
A
C
ProgrammableTransport
Layer
Network access ports defined per end-customer
End-customer driven L1/L2 bandwidth services
Policy & SLA management centralized in Carrier SDN controller
4 | Infinera Confidential & Proprietary
Bandwidth growth & network costs not aligned
• Organic cost reductions alone insufficient for minimizing cost/bit
Network layers operating in isolation, not cooperation
More cross-layer intelligence needed for optimizing traffic
Inter-layer/inter-domain control plane lacking
Why SDN for Multi-Layer Networking?Simplify & Speed Provisioning, Enable Optimization
Vendor W Vendor Z
Vendor X Vendor Y
Optical Transport Network Layer
IP/MPLS Network Layer
?
5 | Infinera Confidential & Proprietary
Evolution Towards Intelligent Transport
Packet-Optical Transport(P-OTN)
Expensive Network Intelligence
Increase Scale, Reduce TCO
IP/MPLS Routers
ConvergenceMulti-layer Switching
OTN, WDM, ROADM, MPLS
ScalabilitySuper-channel Transmission
Coherent, Ready for 1TbE
AutomationOpen Software Control
Programmability, Resiliency
Intelligent Transport Networking
Intelligent transport networking simplifies total network & enables cost efficiency at Cloud scale.
6 | Infinera Confidential & Proprietary
Multi-layer Automation for Intelligent Transport
Need for multi-layer representation, topology computation & provisioning
SDN approach facilitates orchestration across layers & domains
Benefit: Network carries traffic at the most optimal layer
SDN Multi-Layer Orchestration & Optimization
$,W
Router
Optics
DigitalSwitching
$$$,kW
Converged P-OTN Layer
IP/MPLS Layer
Analytics Provisioning
7 | Infinera Confidential & Proprietary
SDN as good as the Underlying Data Plane
These characteristics are absent
from traditional optical networks
ProgrammableOptical Transport Networks
The ability to control network resources and properties at a distance
“No Compromise” for any applications
8 | Infinera Confidential & Proprietary
Integrated OTN with WDM
Network Efficiency
Digital Automation
Automating Everything
Terabit-Scale Multi-Layer Switch
GMPLS + Carrier SDN
Unified Control Plane
CDC FlexROADM
Network Reconfigurability
CapEx/OpEX Optimization
9 | Infinera Confidential & Proprietary
Optimized Multi-Layer Switching Architecture
Fully filled super-channels
High-capacity “express” routes
Optical-layer restoration<50ms service protection
Highly meshed demands
Low add/drop collector networks
Many 100G+ services Many <100G services
Digital Switching Optical Switching
Express
Collector
Optimized with Optimized withDigital Switching Optical Switching
Digital grooming maximizes WDM fill -> CapEx savings
Sub-l switching & service protection -> OpEx savings
ODU0/flex and packet switching granularity
Reconfigurable super-channel switching -> OpEx Savings
Optical express of filled super-channels -> CapEx savings
Wavelength & super-channel granularity
Photonic switching of super-channels
Service-level digital switching & grooming
(Ethernet/SDH/OTN/SAN)
10 | Infinera Confidential & Proprietary
Digital OTN abstraction of BW delivers optimal fit for SDN
In addition to OTN, SDN-control of ROADMs makes sense
But Controlling other analog functions (e.g. power) directly is too complex
Foundational Elements• Super-channels• OTN Switching• GMPLS Control Plane
10GbE service demand
40GbE service demand
Bandwidth Virtualization TM
In use65 Gb/s
Total200 Gb/s
75 Gb/s115 Gb/s
“Lots of physics is used to enhance transmission performance. SDN controller will not be able to manage this constant evolution” – Vz
11 | Infinera Confidential & Proprietary
Deploy Service-Ready Bandwidth with Super-channels
Dynamically control OTN services via Bandwidth virtualization
Dynamically activate additional line side BW via Instant Bandwidth
100G Era: 500G PoolNx100G Enabled Per Line Module
100G activated 100G available; software-defined activation
DTN-X
10G client traffic2.5G client traffic
100G clienttraffic
SDN control of Instant Bandwidth TM
Pay as you grow and Minimize OPEX
12 | Infinera Confidential & Proprietary
BX
C
A
Metro
Long Haul
Ultra-long Haul/Submarine
PM-QPSKSuper-Channel
PM-16QAMSuper-Channel
PM-BPSKSuper-Channel
Software Controlled ModulationMaximize flexibility, Minimize complexity
13 | Infinera Confidential & Proprietary
ABNO ControllerPolicy Agent
ALTO Server
Topology Module
I2RS Client
L3 PCE
VNTM
L1 PCE
Provisioning Manager
OAM Handler
Multi-LayerSDN Control
Layer
Telefónica Multi-Layer SDN Architecture PoC
Network as a Service (NaaS)
Multiple south-bound protocols• REST/JSON• OpenFlow• Netconf/YANG• PCEP• BGP-LS
Multi-layer PCE-based controller: Point and click IP/MPLS services w/automatic router & transport layer provisioned automatically
Application: Dynamic MPLS tunnel service creation in multi-layer, multi-vendor environment.
OTS
OTS
OTS
MX-240-1
MX-240-2
MX-240-3
DTN1 DTN3
DTN2
100G
100G100G10G
10G 10G
10G 10G10G
DWDMSuper-Channels
Bandwidth Virtualization
Open Transport Switch (OTS)
Digital Switching
IntelligentTransportAbstraction
14 | Infinera Confidential & Proprietary
Multi-layer orchestration with OSCARS-TE
REST/JSON
OpenFlow 1.0
Configuration Manager
TopologyExchange Multi-Layer
Path EngineMulti-LayerProvisioning
Multi-Layer Topology App
ESNet Circuits Reservation System (OSCARS)
SDN Controller
Floodlight
Traffic Optimization
Engine
OSCARSTEMulti-Layer SDN
Management Modules
Optical Transport Network
Packet Network
X
Y
Z
A, B, C – Packet Switches
X, Y, Z – Optical Transport
A
B
C
Site A
Hot Interconnect 2014
OTS
OTS
OTS
Site B
15 | Infinera Confidential & Proprietary
Intelligent Transport drives new approach to scaling networks• Service-ready capacity, BW delivery @ Internet speed
• Converged Digital (packet, OTN) and ROADM operations
Multi-Layer SDN has significant benefits• Streamline multi-layer, multi-domain operation
• Rapid application development through standard APIs
• New dynamic “on-demand” services (eg, NaaS, BoD)
• Global view creates opportunity for total network optimization
Carriers seeking evolutionary, open approach• Leverage existing robust optical transport control plane functions
• Open SDN control layer, flexible integration options
Summary
16 | Infinera Confidential & Proprietary
Thank You