Page 1
Recent Progress in ASON Technologies in the OIF
Joe Berthold
President – Optical Internetworking Forum
Page 2iPOP2007, 7-8 June. 2007, Tokyo, Japan
Outline
• OIF Overview
• Control Plane Interoperability Demonstrations
• Current Work and Future Directions
Page 3iPOP2007, 7-8 June. 2007, Tokyo, Japan
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
Page 4iPOP2007, 7-8 June. 2007, Tokyo, Japan
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
Domain C
OIF UNI OIF E-NNI OIF UNI
Domain A Domain B
OIF E-NNINE NE NE NE NE NE
Client Client
VSRSPI SFI
E/OTx
SERDES
FramerLink Layer
(Packet & Cell Protocols)
VSRSPI SFI
E/OTx
SERDES
FramerLink Layer
(Packet & Cell Protocols)
Page 5iPOP2007, 7-8 June. 2007, Tokyo, Japan
Technology Benefits
Optical Control Plane – The Overall Benefits
Domain C
OIF UNI OIF E-NNI OIF UNI
Domain A Domain B
OIF E-NNINE NE NE NE NE NE
Client Client
RoutingRoutingRoutingRoutingSignalingSignalingSignalingSignaling DiscoveryDiscoveryDiscoveryDiscovery
Service activation
Multi-layer resource control
Resiliency mechanisms
Service activation
Multi-layer resource control
Resiliency mechanisms
Topology discovery
Path Selection
Topology discovery
Path Selection
Resource discovery
Inventory management
Control channel management
Resource discovery
Inventory management
Control channel management
Page 6iPOP2007, 7-8 June. 2007, Tokyo, Japan
Evolution from Requirements to Deployment
InteroperabilityAgreements
Interoperability Tests/Demonstrations
InteropWG
Deployment
Feedback
Requirements
CarrierWG
NetworkingWGs
Carriers
Page 7iPOP2007, 7-8 June. 2007, Tokyo, Japan
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
Page 8iPOP2007, 7-8 June. 2007, Tokyo, Japan
Outline
• OIF Overview
• Control Plane Interoperability Demonstrations
• Current Work and Future Directions
Page 9iPOP2007, 7-8 June. 2007, Tokyo, Japan
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
Page 10iPOP2007, 7-8 June. 2007, Tokyo, Japan
OIF Interoperability Labs
Beijing, China
Berlin, Germany
Musashino, Japan
Lannion, France
Middletown, NJ-USA
Waltham, MA-USA
Torino, Italy
SuperComm 2005 booth
Page 11iPOP2007, 7-8 June. 2007, Tokyo, Japan
Page 12iPOP2007, 7-8 June. 2007, Tokyo, Japan
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
Page 13iPOP2007, 7-8 June. 2007, Tokyo, Japan
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
Page 14iPOP2007, 7-8 June. 2007, Tokyo, Japan
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:
1. Flexible distribution of control and data plane elements
2. Modified SONET/SDH bandwidth accounting
Page 15iPOP2007, 7-8 June. 2007, Tokyo, Japan
Flexible Distribution of Control and Data Plane
• 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
routing
NE
LSR Model
routing
NE NE NE
ASON Model
Page 16iPOP2007, 7-8 June. 2007, Tokyo, Japan
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.txt
1 2 3 4 5 6 7 8 9 11 12
13 14 15 16
10
17 18 19 20 21 23 24 22
25 26 27 28 36 29 30 31 32 34 35
37 38 39 40
33
41 42 43 44 45 47 48 46
Slots occupied by: STS-1 STS-3c STS-12c
Page 17iPOP2007, 7-8 June. 2007, Tokyo, Japan
Outline
• OIF Overview
• Control Plane Interoperability Demonstrations
• Current Work and Future Directions
Page 18iPOP2007, 7-8 June. 2007, Tokyo, Japan
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
Page 19iPOP2007, 7-8 June. 2007, Tokyo, Japan
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
Page 20iPOP2007, 7-8 June. 2007, Tokyo, Japan
Ethernet Virtual Connection over VCAT
Domain C
OIF UNI OIF E-NNI OIF UNI
Domain A Domain B
OIF E-NNINE NE NE NE NE NE
EthernetClient
EthernetClient
Ethernet Layer Call/Connection Flow
VCAT Layer Call/Connection Flow
UNI-N UNI-N UNI-CUNI-C
Ethernet EthernetSONET/SDH
SONET/SDH Layer Call/Connection Flow
• added VCAT sublayer coordinates end-to-end VCAT group setup and teardown
Page 21iPOP2007, 7-8 June. 2007, Tokyo, Japan
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
Node B
2. J0: (Node B, Port 2)
Neighbor Discovery
Node A
1. J0: (Node A, Port 5)
3. VerifyWiring
4. Verify Wiring
LinkDB
{B.2, A.5}
LinkDB
{A.5, B.2}
Page 22iPOP2007, 7-8 June. 2007, Tokyo, Japan
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
Page 23iPOP2007, 7-8 June. 2007, Tokyo, Japan
Come to ECOC 2007!
Page 24iPOP2007, 7-8 June. 2007, Tokyo, Japan
Thank you!
For more information on the OIF
please visit www.oiforum.com