Transcript スライド 1

Recent Progress in ASON
Technologies in the OIF
Joe Berthold
President – Optical Internetworking Forum
Page 1
Outline
• OIF Overview
• Control Plane Interoperability Demonstrations
• Current Work and Future Directions
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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About OIF
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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
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International
Carriers
Component and systems vendors
Testing and software companies
Our Mission
To foster the development and deployment of interoperable products
and services for data switching and routing using optical networking
technologies
iPOP2007, 7-8 June. 2007, Tokyo, Japan
Page 3
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
Domain A
Domain B
Domain C
Client
Client
OIF E-NNI
OIF E-NNI
OIF UNI
NE
NE
NE
NE
OIF UNI
NE
NE
• 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
SER
DES
Framer
(Packet &
Cell Protocols)
SPI
iPOP2007, 7-8 June. 2007, Tokyo, Japan
SFI
E/O
Tx
VSR
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Optical Control Plane – The Overall Benefits
Client
Domain A
Domain B
OIF E-NNI
OIF E-NNI
OIF UNI
NE
Signaling
NE
NE
Client
Domain C
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Routing
OIF UNI
NE
NE
Discovery
Technology Benefits
Resource discovery
Service activation
Multi-layer resource
control
Topology discovery
Inventory management
Path Selection
Control channel
management
Resiliency mechanisms
iPOP2007, 7-8 June. 2007, Tokyo, Japan
Page 5
Evolution from Requirements to Deployment
Interoperability
Tests/Demonstrations
Interoperability
Agreements
Requirements
Carrier
WG
Interop
WG
Carriers
Deployment
Networking
WGs
Feedback
iPOP2007, 7-8 June. 2007, Tokyo, Japan
Page 6
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
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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Outline
• OIF Overview
• Control Plane Interoperability Demonstrations
• Current Work and Future Directions
iPOP2007, 7-8 June. 2007, Tokyo, Japan
Page 8
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
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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OIF Interoperability Labs
Lannion,
France
Waltham,
MA-USA
Middletown,
NJ-USA
Beijing,
China
Berlin,
Germany
Torino, Italy
Musashino,
Japan
SuperComm 2005
booth
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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iPOP2007, 7-8 June. 2007, Tokyo, Japan
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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
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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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
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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Feedback from OIF/ASON Prototyping Work
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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:
1. Flexible distribution of control and data plane elements
2. Modified SONET/SDH bandwidth accounting
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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Flexible Distribution of Control and Data Plane
routing
routing
NE
NE
LSR Model
NE
NE
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.txt
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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Modified Bandwidth Accounting
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Slots occupied by:
STS-1
STS-3c
STS-12c
• 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.txt
iPOP2007, 7-8 June. 2007, Tokyo, Japan
Page 16
Outline
• OIF Overview
• Control Plane Interoperability Demonstrations
• Current Work and Future Directions
iPOP2007, 7-8 June. 2007, Tokyo, Japan
Page 17
OIF Optical Routing Activities
• OIF-ENNI-OSPF-01.0 Implementation Agreement
approved 01/2007
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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
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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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
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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Ethernet Virtual Connection over VCAT
Ethernet
Client
Domain A
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Ethernet
UNI-N
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NE
Ethernet
Client
Domain C
OIF E-NNI
OIF E-NNI
OIF UNI
UNI-C
Domain B
NE
OIF UNI
NE
SONET/SDH
Ethernet Layer Call/Connection Flow
NE
Ethernet
UNI-N
UNI-C
VCAT Layer Call/Connection Flow
SONET/SDH Layer Call/Connection Flow
• added VCAT sublayer coordinates end-to-end VCAT group setup and
teardown
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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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
1. J0:
(Node A,
Port 5)
2. J0:
(Node B,
Port 2)
Node A
Link
DB
{A.5, B.2}
iPOP2007, 7-8 June. 2007, Tokyo, Japan
Neighbor
Discovery
3. Verify
Wiring
4. Verify
Wiring
Node B
Link
DB
{B.2, A.5}
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OIF Security Work
• Security requirements
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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
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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Come to ECOC 2007!
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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Thank you!
For more information on the
OIF
please visit
www.oiforum.com
iPOP2007, 7-8 June. 2007, Tokyo, Japan
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