Recent Progress in ASON Technologies in the OIF

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Recent Progress in ASON Technologies in the OIF

• Joe Berthold
• President Optical Internetworking Forum

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Outline

• OIF Overview
• Control Plane Interoperability Demonstrations
• Current Work and Future Directions

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About OIF

• Launched in April of 1998 with an objective to
  foster development of low-cost and scaleable
  internet using optical technologies
• The only industry group bringing together
  professionals from the data and optical worlds
• Open forum 100 member companies
• International
• Carriers
• Component and systems vendors
• Testing and software companies
• Our MissionTo foster the development and
  deployment of interoperable products and services
  for data switching and routing using optical
  networking technologies

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Output from OIF Implementation Agreements

• 35 agreements published to date
• Applications include
• Control plane interfaces User-to-Network (UNI),
  Network-to-Network (NNI), Security Billing
• Intra-office Optical interfaces Very Short Reach
  (VSR) 10Gbps 40 Gbps
• Tunable Lasers Assembly and Control
• Intra-system Electrical interfaces
  Serializer/Deserializer-Framer interface (SFI),
  Physical-Link Layer device interfaces(SPI),
  Fabric-to-Framer interface

Link Layer
Link Layer
E/O
SER
E/O
SER
Framer
Framer
(Packet
(Packet
Tx
DES
Tx
DES
Cell Protocols)
Cell Protocols)
VSR
SPI
SFI
VSR
SPI
SFI
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Optical Control Plane The Overall Benefits
Routing
Signaling
Discovery

• Technology Benefits

Service activation Multi-layer resource
control Resiliency mechanisms

• Topology discovery
• Path Selection

Resource discovery Inventory management Control
channel management
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Evolution from Requirements to Deployment
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OIF Interactions with other bodies

• IETF
• Frequent informal liaisons on protocol issues and
  activities
• Example Ethernet traffic specifications
• Security Aspects
• ITU-T
• Liaisons for exchange of documents, issue
  identification
• Cooperative discussion on ASON-related Demos and
  Implementation Agreements
• MEF
• Recent liaisons on Ethernet-related work
• Support of MEF Ethernet service characteristics
  in OIF UNI 2.0

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Outline

• OIF Overview
• Control Plane Interoperability Demonstrations
• Current Work and Future Directions

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2005 - Second Worldwide Demonstration

• World's leading optical technology carriers and
  suppliers
• 7 carriers and 13 vendors invested significant
  time and resources to complete the demonstration
• Collaborating to build a global optical network
  delivering Ethernet services
• Global Reach
• 3 Continents, 6 Countries
• Trans-Atlantic, Trans-Pacific network connection
  set-up

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OIF Interoperability Labs
Lannion, France
Waltham, MA-USA
Beijing, China
Berlin, Germany
Middletown, NJ-USA
Torino, Italy
Musashino, Japan
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(No Transcript)
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Technical Highlights

• The network consists of over 70 nodes from 13
  vendors in the 7 carrier labs
• Equipment includes Ethernet switches, routers,
  MSPPs, SONET/SDH cross-connects, OADMs, ROADMs
• Ethernet Services demonstrated
• Ethernet Private Line service
• Enabled by OIF optical control plane
• Virtual Ethernet services (Virtual Private Line,
  Virtual Private LAN, Internet Access/Virtual
  Trunking)
• Enabled by VLAN tags

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Major Accomplishments

• Multi-layer call/connection control of UNI-N
  devices
• Orchestrates actions between client and server
  layers
• Controls Ethernet adaptation using
  GFP-F/VCAT/LCAS
• Creation of end-end calls and connections across
• Multiple data plane layers
• Multiple vendors equipment
• Multiple carrier labs
• The major features (1) Ethernet over SONET/SDH
  adaptation and (2) distributed optical control
  planes have each been demonstrated before
• However, this is the first event bringing both
  together in an integrated fashion on a global
  scale

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Feedback from OIF/ASON Prototyping Work

• Prototyping of ASON routing principles
• Participation by OIF members in IETF Joint Design
  Team
• IETF Routing Evaluation draft (RFC 4652)
• Followed up by IETF Solutions draft, in progress
• Example Areas
• Flexible distribution of control and data plane
  elements
• Modified SONET/SDH bandwidth accounting

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Flexible Distribution of Control and Data Plane
routing
routing
NE
LSR Model
ASON Model

• Allow one Routing Controller to advertise for
  multiple Data Plane Nodes
• Result Supported by adding Local and Remote TE
  Router IDs to the Link State Advertisement
• see draft-ietf-ccamp-gmpls-ason-routing-ospf-03.tx
  t

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Modified Bandwidth Accounting

• Under certain conditions, overall bandwidth does
  not reflect ability to support connections
• e.g., enough timeslots but not contiguous for a
  large signal type
• Result advertise actual availability for
  connections at each signal type if appropriate
• see draft-ietf-ccamp-gmpls-ason-routing-ospf-03.tx
  t

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Outline

• OIF Overview
• Control Plane Interoperability Demonstrations
• Current Work and Future Directions

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OIF Optical Routing Activities

• OIF-ENNI-OSPF-01.0 Implementation Agreement
  approved 01/2007
• OSPF-based Inter-domain routing within carrier
  network
• Uses ITU-T G.7715 and G.7715.1 ASON routing
  requirements
• Incorporates inputs from OIF Carrier WG
• Documents prototyping of OSPF-based ASON routing
• codepoints used for prototyping purposes
• prototyping example
• Points towards future incorporation of routing
  standards work from IETF and ITU-T

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OIF Optical Signaling Activities

• OIF UNI 2.0 Implementation Agreement in progress
• Adds MEF-based Ethernet UNI service interface
• Ethernet Private Line and Virtual Private Line
• MEF traffic parameters (liaison with IETF CCAMP)
• Ethernet Label formats (liaison with IETF CCAMP)
• Ethernet bandwidth modification
• OTN and sub-STS-1 rate services
• OIF E-NNI Signaling 2.0 also in progress
• Ethernet support over VCAT SONET/SDH
• Bandwidth modification using VCAT group resizing
• Multilayer model derived from ASON work

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Ethernet Virtual Connection over VCAT
Domain A
Ethernet Client
Ethernet Client
Domain C
Domain B
OIF E-NNI
OIF UNI
OIF E-NNI
OIF UNI
NE
NE
NE
NE
NE
NE
Ethernet
Ethernet
SONET/SDH
UNI-N
UNI-N
UNI-C
UNI-C
Ethernet Layer Call/Connection Flow
VCAT Layer Call/Connection Flow
SONET/SDH Layer Call/Connection Flow

• added VCAT sublayer coordinates end-to-end VCAT
  group setup and teardown

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OIF Discovery Progress

• Prototyping work in progress
• Relies on ITU-T G.7714.1 Layer Adjacency
  Discovery specification
• Exchange Discovery messages over J0
• Follow up with miswiring detection

Neighbor Discovery
1. J0 (Node A, Port 5)
2. J0 (Node B, Port 2)
Node B
Node A
3. Verify Wiring
4. Verify Wiring
B.2, A.5
A.5, B.2
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OIF Security Work

• Security requirements
• Driven largely by input from US Dept. of Defense
• For UNI, ENNI and Management interfaces
• Application of IPSEC and IKE technology
• Use of Syslog for event recording
• Documented in multiple IAs
• OIF-SEP-01.0, OIF-SEP-02.1, OIF-SMI-01.0
• Working now with IETF MPLS/GMPLS security
  framework design team

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Come to ECOC 2007!
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Thank you!
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