Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Computer network wikipedia , lookup
Zero-configuration networking wikipedia , lookup
Recursive InterNetwork Architecture (RINA) wikipedia , lookup
Cracking of wireless networks wikipedia , lookup
Distributed firewall wikipedia , lookup
Piggybacking (Internet access) wikipedia , lookup
Network tap wikipedia , lookup
Broadband Networks, Integrated Management & Standardization Nobuo FUJII ITU-T SG4 Vice Chairman NTT Network Innovation Laboratories [email protected] Broadband Networks and Services - Network Technologies • • • • • Home Network Access network Transport network Server network IP network Residential Gateway Centric Ether network base 10Mbps-100Mbps Access BPON, DSL base 10Gbps Link, IP routers GMPLS enbaled OTN Cluster Network, GbFC,iSCSI, 10G standard IP routing Muticast, Diffserve,etc. Braadband Networks , Integrated Management & Standardization 2 Broadband Services • Contents Delivery Applications – Archived Contents (Point-to-point) – Streaming Contents (Multicast) • Uni-directional to Bi-directional Home ntwk SV RG Contents holder CDN RG HN RG HNuser Braadband Networks , Integrated Management & Standardization user 3 Broadband Network Architecture Contents Delivery, User Data Cash Portal Gateway, Multimedia com. ASP networks Home network ISP networks Streaming, Archiving, Cashing Distributed Processing engine Server Network Various CoS support, IP multi-cast Low latency, Bandwidth Guarantee IP Network Network Operator networks Bandwidth allocation, Secure transport Reliable transport. Cut through, etc. Transport Network Braadband Networks , Integrated Management & Standardization 4 End-to-end Management of Transport Network - connection control procedure• Connection establishment component in ASON 2. Call indication Called Party Calling Party 1.Call request Network Call Call Call Controller 3. Call confirmed Controller 10. Call confirmed Controller 9. Connection confirmed 4. Connection request 5. Route query Routing Connection Controller 6. Route Controller info. 7. Link connection request 8. Link connection 7. Link connection request confirmed Link Resource Manager Link Resource Manager Braadband Networks , Integrated Management & Standardization 5 End-to-end Management of Transport Network - routing aspect • Source and Step-By-Step Routing for ASON provides an end-to-end connections of the transport network. (alternative: Hierarchical routing) Connection request E A B C Connection request msg. Established connection Braadband Networks , Integrated Management & Standardization D Equipment Node Subnetwork 6 Case study: CDN service management • Scenario: User receives a stream contents from CDN network 1.Service request 3.Service grant (Set up information) Homenetwork 4.Set-up request (Set up information) 7.Contents delivery CDN network 2.User authentication Multi-channel Contents stream (program info) IP network 5.Multi-cast configuration 6.Bandwidth request/allocation 8.Performance report Transport network Braadband Networks , Integrated Management & Standardization 7 Management of the broadband networks • Goal: End-to-end management of sub-networks: – Service management rather than network management. • Requirements for sub-networks: – Rapid service provisioning; – Autonomous service restoration; – QoS sensible application acceptance. • Management areas of importance: – Configuration: service provisioning, autonomous systems configuration, – Performance: QoS report. Braadband Networks , Integrated Management & Standardization 8 Design method for the broadband network management • Conditions – Diversified(& ing) Management Protocols • SNMP, CORBA, CMIS/P, XML… – Diversified(& ing) SDOs • cf.SDO(Standard Development Organization) • Approach – Protocol Independent Interface Design • Use of UML method – Electric document exchange between entities Braadband Networks , Integrated Management & Standardization 9 Issues on the design method • UML – What are the protocol independent common services, naming and addressing methods? – Conversion to SNMP, CORBA, GDMO models • Use of XML for document exchange – What are Rules, Objectives and Guidelines of XML use? – Development of the GTDD • cf. Global Telecommunications Data Dictionary Braadband Networks , Integrated Management & Standardization 10 tML Framework Scope Complete Trading Partner Spec. Implementation Infrastructure Profile Message Structure Header & Encoding Rules security Payload Business Process Scenario Trading Partner Profile/Agreement Data & Vocabulary Business Document Spec. Business Rules tML Framework Rules, Objectives, Guidelines for Development of tML Schema tML Schemas Reliable Connectivity tML Document Implementation Infrastructure Profile Braadband Networks , Integrated Management & Standardization Structured according to tML Schemas Developed according to tML Framework 11 Conclusions • The broadband network as integration of sub-networks: – Home network, ASP networks, ISP networks, and Operators networks. • Vertical integration of the broadband network management: • Protocol independent management interface design: – Naming, Addressing, Common Service issues need to be solved. • There are standardization efforts in ITU-T: – ASON (Automatically switched optical network) Rec.G.8080/Y.1304 – tML (Telecommunications Markup Language) Rec.M.3030 – TMN methodology amendment Rec.M.3020 Braadband Networks , Integrated Management & Standardization 12