http://www.5gex.eu Supporting multi-domain resource orchestration in 5G networks Diego R. López – Telefónica I+D IEEE 5G Berlin Summit 2 November 2016
One 5G Network – Multiple Industries …to a “network factory” where resources and network From dedicated physical networks with functions are traded and provisioned: new dedicated control and dedicated services infrastructures and services are “manufactured by SW” and resources for different applications… Application n A1 A2 An Health Robotic communication Media NW1 NW2 NWn MBB Basic Unified Orchestration and Management Plane f1 f2 fn Physical Resources (Access, Connectivity, Computing, Storage, ..)
Slicing the Network • The slice concept as the basic building block • An homogeneous infrastructure – Separating capacity (HW) and functionality (SW) => NFV – Programmable, recursive and composable control => SDN • Software Networks are key to achieve it
Programmability Enabling 5G Resource Efficiency Service Diversity Service Agility Dynamically allocate Share a single Shorten the time for the right amount of infrastructure among service creation and resources when and multiple services with service adaptation where needed. wide range of (e.g., scaling). requirements. Source: Ahmad Rostami at al. (Ericsson)
Recursion in Slicing
NFV: The Model and the Framework Architecture E2E Network Service End End Point Point Network Service Logical Abstractions VNF VNF VNF VNF VNF Logical Links VNF Instances SW Instances VNF VNF VNF VNF VNF : Virtualized Network Function NFV Infrastructure Virtual Virtual Virtual Virtual Resources Compute Storage Network Virtualization SW Virtualization Layer HW Resources Compute Storage Network
Orchestration Layers • Apply NFVO separation of Virtualization Network� Service� VNF� Managers concerns Service Orchestration Orchestrator� (NSO) • Incorporate WAN aspects Resource� Orchestration • Service logic (aggregated� virt res) – Tenant Virtualization� • Resource Resource allocation Orchestration VIM WIM – Provider Orchestration� and� Orchestration� and� • Facilitate Optimization� (virt res) Optimization� (virt res) resource sharing Domain� Spec.� Adapt. Domain� Spec.� Adapt. Technology�adapters
Provider B Multi-Provider NFVO NSO NFVOs RO Provider A VIM/WIM NFVO NSO RO RO DS RO VIM/WIM VIM WIM RO RO RO Domain Spec. Domain Spec. Domain Spec. 8
Multi-Domain Use Cases
Multi-Provider Operation: SlaaS Customer Request (Tenant) Recursion of the Resource Slice as a Service (SlaaS) Resource Slice programming interface with (SLA) Multi- provider Orchestrator Program Adminis dministrat ation on C Resource Slice Management Multi- Multi- and orchestration RO RO RO RO provider provider plane Global information Orchestrator Orchestrator Global information exchange Adminis dministrat ation on A Adminis dministrat ation on B Program exchange Resource Slice RO RO RO RO RO VI VIM VIM VI VI VIM VIM VI VI VIM VI VIM VI VIM (Legacy) Network Network Network Network Network Network Network Control Controller Controller Controller Controller Controller Controller Controller plane SDN SDN Packet/ Pa Legacy Legacy Data Datacenter Da Da Datacenter Packet Pa Pa Packet plane nets. Opto nets. Operator A administration Operator B administration Operator C administration ENNI EN EN ENNI 10
Resource Slice Programming Customer Red IS the ONLY Request (Tenant) Resource Slice as a Service (SlaaS) customer seen by with (SLA) Multi- Blue/Green provider Orchestrator Program Adminis dministrat ation on C Resource Slice Management Multi- Multi- and orchestration RO RO RO RO provider provider plane Global information Orchestrator Orchestrator Global information exchange Adminis dministrat ation on A Adminis dministrat ation on B Program exchange Resource Slice RO RO RO RO RO VIM VI VIM VI VI VIM VIM VI VIM VI VIM VI VIM VI Red shared VNF Red VNF not Customer’s (Legacy) used ALSO by the Network Network Network Network Network Network Network used by the Control dedicated VNF Controller Controller Controller Controller Controller Controller Controller plane Customer Customer SDN SDN Pa Packet/ Legacy Legacy Data Da Datacenter Datacenter Da Pa Packet Pa Packet Pa Packet Pa Packet plane nets. Opto nets. VNF VNF Operator A administration Operator B administration Operator C administration VNF VNF EN ENNI ENNI EN 11
The Gatekeeper Approach • Direct collaboration within the 5G PPP • Relying on the need of NFV DevOps for a trustworthy service lifecycle – Accountability in all its aspects • A mediation element enforcing policies set by the NSP is a feasible approach – In any collaboration scenario • The gatekeeper can be applied not only to VNF and NS management – Slice support via horizontal and vertical recursion
The 5GEx Fact Sheet • Enable business and technical cross- domain service orchestration over multiple administrations, • Realize composite services by combining http://www.5gex.eu cross-domain network, computing and storage resources, • Develop suitable business models for operators to optimally buy, sell, and integrate 5GEx services, • Build and deploy a proof-of-concept system prototype , implementing the “Sandbox Exchange”, • Contribute to relevant standard forums and Open Source communities.
This work is partially supported by 5G-PPP 5GEx, an innovation action project partially funded by the European Community under the H2020 Program (grant agreement no. 671636). The views expressed here are those of the authors only. The European Commission is not liable for any use that may be made of the information in this presentation.
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