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

Page 2iPOP2007, 7-8 June. 2007, Tokyo, Japan

Outline

• OIF Overview

• Control Plane Interoperability Demonstrations

• Current Work and Future Directions


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


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)


Technology Benefits

Optical Control Plane – The Overall Benefits

Domain C


Domain A Domain B


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


Evolution from Requirements to Deployment

InteroperabilityAgreements

Interoperability Tests/Demonstrations

InteropWG

Deployment

Feedback

Requirements

CarrierWG

NetworkingWGs

Carriers


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


Outline

• OIF Overview




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


OIF Interoperability Labs

Beijing, China

Berlin, Germany

Musashino, Japan

Lannion, France

Middletown, NJ-USA

Waltham, MA-USA

Torino, Italy

SuperComm 2005 booth



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


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


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


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


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


Outline

• OIF Overview




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


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


Ethernet Virtual Connection over VCAT

Domain C


Domain A Domain B


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


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}


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


Come to ECOC 2007!


Thank you!

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