International Telecommunication U n i o n ITU-T Technical Specification TELECOMMUNICATION STANDARDIZATION SECTOR (June 2020) OF ITU FG-NET2030 – Focus Group on Technologies for Network 2030 Network 2030 Architecture Framework - 2 - FG NET-2030 Technical Specification on Network 2030 Architecture Framework Table of Contents Acknowledgement ........................................................................................................................... 10 1. Summary .............................................................................................................................. 10 2. Keywords .............................................................................................................................. 10 3. Scope ..................................................................................................................................... 10 4. Abbreviations ....................................................................................................................... 10 5. Conventions. ......................................................................................................................... 12 6. Definitions and Acronyms ................................................................................................... 13 7. Introduction.......................................................................................................................... 23 8. Architecture Principles ....................................................................................................... 23 8.1 Simplicity ................................................................................................................ 24 8.2 Native Programmability and Soft Re-architecting ............................................. 25 8.2 Backward Compatibility ....................................................................................... 25 8.3 Heterogeneity in communication, compute, storage, service and their integration .............................................................................................................. 26 8.4 Native Slicing ......................................................................................................... 26 8.5 Unambiguous naming network functions and services ...................................... 26 8.6 Intrinsic Anonymity and security support for all network operations ............ 27 8.7 Resilience ................................................................................................................ 27 8.8 Network Determinism ........................................................................................... 28 9 Overall Architecture ............................................................................................................ 29 9.1 Introduction ........................................................................................................... 29 9.2 Network2030 Architecture ................................................................................... 30 9.2.1 Characteristics of Network2030 ............................................................... 32 9.2.2 Interfaces .................................................................................................... 33 9.2.3 Connections and Connection End Points ................................................ 38 9.3 Management Architecture for Network2030 ...................................................... 41 9.4 Conclusion .............................................................................................................. 46 10 Access Network and Edge ................................................................................................... 47 - 3 - 10.2 Introduction ........................................................................................................... 47 10.3 Access and Edge Components .............................................................................. 48 10.4 Architecture ........................................................................................................... 50 10.5 Edge Computing and Analytics ............................................................................ 53 10.6 MEC and Access Network .................................................................................... 55 10.7 Protocols and Interfaces ........................................................................................ 55 10.8 Messaging Services ................................................................................................ 57 10.8.1 Multi-User Group Messaging ................................................................... 58 10.8.2 Opportunistic Multicast ............................................................................ 58 10.9 Resource Fairness .................................................................................................. 59 10.10 Flow Setup .............................................................................................................. 60 10.11 Efficient Transport Network Integration ............................................................ 60 10.12 Deterministic Networking ..................................................................................... 60 10.13 Ultra-Reliable communications ............................................................................ 61 10.14 End User Equipment Interaction with MEC ...................................................... 61 10.15 MEC Federation and Collaboration .................................................................... 64 10.15.1 GSMA Operator Platform Concept ..................................................................... 65 10.15.2 MEC Federation and Collaboration .................................................................... 65 10.15.3 Business Benefits .................................................................................................... 68 10.15.4 Business Value Chain ............................................................................................ 68 10.15.5 Challenges and Remedies ...................................................................................... 69 10.16 Conclusion .............................................................................................................. 69 11 Space Networking ................................................................................................................ 70 11.1 Key Components of Future Integrated Space-terrestrial Network .................. 70 11.2 Fundamental integration use cases and scenarios .............................................. 70 11.3 Using LEO satellites as backbone network ......................................................... 71 11.3.1 Decoupled scenario .................................................................................... 71 11.3.2 Coupled scenario ....................................................................................... 71 11.3.3 Using LEO satellites as access network ................................................... 72 11.3.4 Design options on addressing and routing .............................................. 73 11.4 Other Advanced Functionalities and Features ................................................... 76 11.4.1 Supporting of unicast, multicast, broadcast and anycast ...................... 76 11.4.2 Access/admission control and security .................................................... 77 11.4.3 Edge caching and computing ................................................................... 77 11.4.4 Network slicing .......................................................................................... 77 11.5 Implication to Key Network Management Operations ...................................... 78 12 Routing and Addressing ...................................................................................................... 80 12.1 Routing Requirements in Network2030 .............................................................. 80 - 4 - 12.1.1 Path and Topology Policies....................................................................... 80 12.1.2 Predictive Routing ..................................................................................... 82 12.1.3 Domain-Specific Routing Protocols and Algorithms ............................. 82 12.1.4 Industrial Internet and Internet of Things ............................................. 83 12.1.5 ManyNets and Routing in the space ........................................................ 83 12.2 Network layer UNI and NNI ................................................................................ 84 12.3 Mobility .................................................................................................................. 85 12.4 Routing Security and Resilience ........................................................................... 85 12.5 Emerging Routing Protocols ................................................................................ 87 13 Security, Privacy and Trust ................................................................................................ 91 13.1 Goals ....................................................................................................................... 91 13.2 Requirements and Challenges .............................................................................. 93 13.3 Design Alternatives ................................................................................................ 94 13.3.1 Decentralized