oif challenges: enabling broadband on-demand services
DESCRIPTION
OIF Challenges: Enabling Broadband On-Demand Services. A genda. Service Drivers, Challenges and Transformations in Network Infrastructure OIF Development and Test of Interoperable Networking Solutions OIF 2009 Worldwide Interoperability Demonstration. - PowerPoint PPT PresentationTRANSCRIPT
Page 1iPOP2009, Tokyo, Japan
OIF Challenges: Enabling Broadband On-Demand Services
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Agenda
• Service Drivers, Challenges and Transformations in Network Infrastructure
• OIF Development and Test of Interoperable Networking Solutions
• OIF 2009 Worldwide Interoperability Demonstration
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Service Drivers, Challenges and Transformations in Network Infrastructure
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Service Drivers and Challenges
• Users demanding lower cost, converged and personalized services– Broadband services with high performance, feature
richness, dynamic control and reliability
• Complexity in networks, services, vendors and markets
• Increasing network diversity in:– Industry standards– Carrier models– Product architectures
• Need for vendor innovation while preserving interoperability
Page 5iPOP2009, Tokyo, Japan
Optical Network TransformationA Work in Progress
Data
Cap
acit
yFeatu
re r
ich
ness
SONET/SDH ringsDCS
WDM pt-to-pt
SONET/SDH ringsDCS
WDM pt-to-pt
Past Future
Key drivers• Capacity• Performance• Reliability
Key drivers• Service assurance• Bandwidth
optimization• Automation
Key drivers• Convergence• Operational
efficiency• Availability
NG-SONET/SDH ASON/GMPLS
ROADM
NG-SONET/SDH ASON/GMPLS
ROADM
Transparent photonicsTransparent photonics
Today
Packet-basedTransport
Packet-basedTransport
ASON/GMPLSASON/GMPLS
Tunable ROADMTunable ROADM OTNOTN
Much attention is on emerging technology, yet carriers must deliver services over diverse networks based on legacy, contemporary and cutting edge technologies.
There is no universal convergence layer or technology that meets everyone’s requirements
Page 6iPOP2009, Tokyo, Japan
ASON Architecture and OIF IAs
• ASON architecture addresses the transport network evolution– Heterogeneous network topologies, technologies, and applications– Diverse internal control plane protocols, including management-based– Separation of transport and control planes
• OIF complements the work of optical standards bodies– Implementation Agreements (IAs) based on standards– Interoperability testing and prototyping of solutions
Domain CDomain A Domain B
NE
NENE
NENE NE NENE
UNI E-NNI UNIE-NNIClient ClientControl
plane
Transport plane
• Each domain can use either management or control plane internally• Control plane topology can differ from transport plane topology
• Transport technology and topology can differ in each domain
NM
DCN DCN
Management plane
NE NE
NE
NE
Page 7iPOP2009, Tokyo, Japan
OIF Development and Test of Interoperable Networking Solutions
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OIF UNI and E-NNI Development
Signaling Specifications and Features
UNI 1.0r2
2004
UNI 2.0
2008
E-NNI 1.0
2004
E-NNI 2.0
2009
Connection Types SONET/SDH High Order √ √ √ √
SONET/SDH Low Order √ √
OTN (ODUk, OCh) √ √
Ethernet (EPL) √ *
Ethernet (EVPL) √ *
Connection Services
Connection Setup/Teardown √ √ √ √
Call Control √ √ √
Non-Disruptive Modification √ √
* E-NNI does not directly support Ethernet bearer interfaces but can carry Ethernet services adapted into SONET/SDH or OTN signals
Page 9iPOP2009, Tokyo, Japan
Control Plane EvolutionExtending the Control Plane for Emerging Technologies
Transport TechnologySwitched
EntityKey Features & Technologies
Remaining Challenges
Layer 2 (Packet –
MPLS-based/PBB/PBB-TE)Packets
Packet-based, connection-oriented, L2
transport tunnels
Tailoring MPLS for connection-oriented
operation
Layer 1 (TDM – OTN/ODUk) Time SlotsOptical/TDM switching at
10/40/100G rates
Definition of OTU-4, ODU-4 (100G+ OTN
container)
Layer 0 (Lambda – OTN/OCh/WSON)
Wavelengths
Photonic switching (multidegree,
directionless, colorless ROADM/TOADM/WSS)
continuity, physical impairments, scalability
L0-LambdaOTN/OCh/WSON
L2-PacketMPLS-based/PBB/
PBB-TEL1-TDM
OTN/ODUk
L1-TDMSONET/SDH
Page 10iPOP2009, Tokyo, Japan
OIF Multi-layer Control Plane ModelGeneric Technology Layers with Recursion
• Edge nodes typically provide layer adaptation and multi-layer control plane. Core nodes typically operate in single server layer
• Supports non-disruptive modification (BW or VLAN IDs) to meet varied demands of client while in-service• Versatile – supports only layers needed (e.g Eth-VCAT-SDH, packet over WDM) yet supports multiple
layer adaptations– Server layer call/connection signaling flow completes before client layer
Domain C
UNI E-NNI UNI
Domain A Domain B
E-NNINE NE NE NE NE NE
Client Client
Service Layer N Call/Connection Flow (e.g. IP, Ethernet)
Transport Layer N-1 Call/Connection Flow (e.g. SDH)
Transport Layer N-2 Call/Connection Flow (e.g. OTN)
Page 11iPOP2009, Tokyo, Japan
OIF Multi-layer Control Plane ExampleEthernet Services over Connection-Oriented Packet Transport
Domain C
UNI E-NNI UNI
Domain A Domain B
E-NNINE NE NE NE NE NE
Client Client
Client Ethernet Layer Call
Provider Bridge Layer Call
Packet Transport Layer Call (e.g. MPLS-based, PBB-TE)
Provider VLAN
Ethernet Virtual Circuit (EVC)
Control Plane Layering
Transport Plane Layering
L2 Tunnel
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OIF 2009 Worldwide Interoperability Demonstration
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Putting the Pieces TogetherOIF Implementation Agreements and Interoperability Demos
OIF Implementation Agreements
UNI 1.0 signalingUNI 1.0r2 signalingE-NNI 1.0 signaling E-NNI 1.0 routing
UNI 2.0 signaling
2001 2002 2003 2004 2005 2006 2007
OIF Networking Interoperability Demonstrations
Lab Location
Trade Show
New Capabilitie
s Tested
UNH
SUPERCOMM
Draft UNI 1.0
UNH
OFCDraft E-
NNI signaling & routing
Global – 7 carriers
SUPERCOMMCP-enabled
SONET/ SDH data plane
Ethernet over SONET/SDH data plane-only test (GFP/VCAT/LCAS)
Global – 7 carriers
SUPERCOMMDraft
extensions for CP-enabled EPL
Data plane-only test of EVPL and ELAN
Global – 7 carriers
ECOCEPL services via
pre-IA UNI 2.0 and E-NNI 2.0 over SONET/SDH transport layers
CP failure recovery
BW modificationCP neighbor
discovery
2008 2009
E-NNI 2.0 signaling
Global – 7 carriers
Worldwide InteropEVPL services via
UNI 2.0 and E-NNI 2.0 over diverse transport layers
• Packet (PBB-TE and MPLS-based)
• SONET/SDH• OTNCP-based
restoration
ASON/GMPLS Interworking
Page 14iPOP2009, Tokyo, Japan
OIF Global Topology 2009
USA Europe Asia
Verizon
CienaMarben Products
SycamoreTellabs
ZTE
TelecomItalia
KDDIDeutscheTelekom
NTT
Alcatel-LucentCiena
EricssonMarben Products
Alcatel-LucentEricssonTellabs
Alcatel-LucentCiena
EricssonMarben ProductsNEC Corporation
of America
Alcatel-LucentMarben ProductsNEC Corporation
of America
Alcatel-LucentHuawei
ZTE
Alcatel-LucentCiena
HuaweiMarben ProductsNokia Siemens
Networks
ChinaTelecom
Orangs Labs
Page 15iPOP2009, Tokyo, Japan
OIF 2009 Worldwide Demonstration FeaturesHigh Level Technical Objectives
• EVPL over diverse transport technologies• End-end domain-based service restoration• Simultaneous control plane and data plane testing• Wide range of signal formats and data rates• Switched connections (with UNI-C) and soft permanent
connections (no UNI-C, triggered by management device)• Connections set up over both pre-provisioned and dynamically
established server layer trails• Graceful and forced teardown• Vendor I-NNI interworking with UNI 2.0 and E-NNI 2.0• Test buildup from lab-local to regional to global scope
Page 16iPOP2009, Tokyo, Japan
OIF 2009 Worldwide Demonstration FeaturesExamples of Detailed Technical Objectives
• EVPL over connection-oriented packet transport– Uni- and bi-directional connections– EPL, EVPL type 1, 2, 3 and E-tree– Packet-based forwarding, multiplexing, QoS, OAM and protection (both
failure-induced and user-initiated)
• Restoration– Triggers: node failure, inter/intra domain link failure, user command– E-NNI based restoration flow using upstream Notify message and make-
before-break process– Intra-domain or end-end multi-domain restoration– Failed resource identification to support diverse restoration– Signaling to coordinate traffic roll between working and protection paths
Page 17iPOP2009, Tokyo, Japan
OIF Worldwide Interoperability Model
OIF IAs, Industry Standards
Vendor Equipment
Carrier Lab Resources
Global SCN
Operational Experience
Technology Maturity
Lessons Learned
OIF Worldwide Interoperability Demonstrations
Page 18iPOP2009, Tokyo, Japan
Thank You
Please visit the OIF booth for more information and a live demonstration (booth 102)