ITUT Workshop on IPOptical Chitose 9 11 July

IP/Optical Networks: Motivation • Infrastructure Attributes – Optical core, IP router clients, IP end

IP/Optical Networks: Performance Benefits and Challenges • Performance Benefits – – Increased (and more

Combined Protocol Layer and Technology Domain Views (and Some Performance Management Issues to be

Traditional SG 13/WP 4 Performance Model NI NI User Network (Parameter Defining Reference Events)

Application in Defining Optical Network Performance IP User IP Router “Client” Network Switched Optical

Possible Discussion Topics: IP Performance Specifications • Performance Parameters, Objectives, and Qo. S Classes

Possible Discussion Topics: Relating Optical Layer and IP Client Performance • Performance Model for

Possible Discussion Topics: Performance Management and Interworking • Alternative Views of a Service Delivery

Network Performance (IP/Optical) Session Plan Topic Introduction 3 Presentations Open Discussion Wrap Up, Action

Slides: 10

Download presentation

ITU-T Workshop on IP/Optical Chitose, 9 -11 July 2002 Session 11 -- Network Performance Neal Seitz, Chair SG 13/WP 4 • IP Performance Specifications: Progress and Next Steps -- Al Morton, AT&T (SGs 13, 12, IETF) • Relating Optical Layer and IP Client Performance -- Peter Huckett, Acterna (SGs 4, 13, 15, TMForum) • IP/Optical Network Performance Management --Tobey Trygar, Telcordia (SGs 15, 4, TMForum)

IP/Optical Networks: Motivation • Infrastructure Attributes – Optical core, IP router clients, IP end users – All types of application data carried in IP packets – MPLS based network management and control • Essential Capabilities – Dynamic resource reservation – Multi-layer traffic engineering – Automatic protection switching, path restoration • Operational Benefits – Lower network deployment and management costs – Faster optical path provisioning and restoral – Enhanced service creation, new applications

IP/Optical Networks: Performance Benefits and Challenges • Performance Benefits – – Increased (and more reconfigurable) transmission capacity Reduced packet transfer delay, delay variation, loss, error Lower “call” set up delays and blocking probabilities Improved service availability • Performance Challenges – – – Define ASON/OTN performance parameters and objectives Relate ASON/OTN and IP network performance measures Specify interoperable performance signaling protocols Relate IP user/client requirements with control mechanisms Define compatible network management strategies

Combined Protocol Layer and Technology Domain Views (and Some Performance Management Issues to be Resolved) ? IP CONTROL AND OPTICAL CONTROL AND MANAGEMENT PLANE PROTOCOLS ? IP LAYER PERFORMANCE (Y. 1540, Y. 1541) IP LAYER LINK LAYER OCh PHYSICAL LAYER RM AN O RF R PE OMS L LA YE OTS CA IP ROUTER NETWORK OCh PT I PHYSICAL LAYER RELATIONSHIPS ? O LINK LAYER CE ? IP LAYER ? OTN OMS OTS IP ROUTER NETWORK

Traditional SG 13/WP 4 Performance Model NI NI User Network (Parameter Defining Reference Events) Criterion Function Speed Accuracy Dependability Access Primary Performanc e Parameters Transfer Disengagement (Decision Parameters) s Available b y li it Av a ail am r Pa r ete Unavailable

Application in Defining Optical Network Performance IP User IP Router “Client” Network Switched Optical “Core” Network NI? IP Router “Client” Network NI? (Reference Events? ) Performance Parameters? (Decision Parameters? ) s? Available y a it bil A il va m ra a P r ete Unavailable IP User

Possible Discussion Topics: IP Performance Specifications • Performance Parameters, Objectives, and Qo. S Classes – Current IP network applications (FTP, e-mail, browsing, …) – Planned real-time services (Vo. IP, video conferencing, …) – New applications enabled by IP/Optical infrastructures • • Allocation of Performance Limits Among Providers Performance Monitoring (In and Out of Service) Mechanisms for Providing Assured-Quality Services Localization of IP Network Failures

Possible Discussion Topics: Relating Optical Layer and IP Client Performance • Performance Model for ASON/IP Client Interactions – Interfaces, reference events, functions, parameters – Service classes, service level agreements (SLAs) • • Allocation of Performance Limits Among Providers Performance Monitoring (In and Out of Service) Mechanisms for Providing Assured-Quality Services Localization of Optical Network Failures

Possible Discussion Topics: Performance Management and Interworking • Alternative Views of a Service Delivery Network – Layered protocol/transmission signal view – Network domain view (technology, jurisdiction, routing) • Mechanisms for Performance (and Capacity) Control – Between IP end users and “client” IP router networks – Between IP clients and switched optical core networks – Among layers within IP and optical technology domains • Performance Management Interworking Among Layers – Performance monitoring, failure localization – Protection, restoration, OAM&P

Network Performance (IP/Optical) Session Plan Topic Introduction 3 Presentations Open Discussion Wrap Up, Action Items Time 10 minutes 60 15 5 90 minutes