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Abstract

Companies are currently investing billions into 5G technologies all around the world, yet there are presently few use cases for how to utilise 5G to create new services and ultimately generate revenue to account for this large initial investment. The proposal of SD-WAN over 5G provides a plausible new service using 5G that can produce revenue to justify the business investment, SD-WAN provides seamless connectivity for multi-cloud environments and connects enterprise networks - including branch offices and data centres - over large geographic distances.

Rationale

The business

5G Program Overview

The objective of the 5G program is to create new services & generate revenue for 5G / 5G Automation through demonstration of below use-cases:. SD-WAN

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Key Contributors

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• ONAP Enhancements
• E2E Ownership

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• 5G Test Bed
• TMF Service APIs

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is a proposal use case for how we can utilise 5G for creating new services. To prove that the new 5G network is keeping up to its requirements, we can apply this use case to provide a real-world scenario of what the 5G network can be used for.

We wish to use ONAP for our SD-WAN so by including this use case as a proposal, we can prove our 5G fixed wireless access works using ONAP. By submitting the use case to ONAP we hope to match our business needs as well as help contribute to ONAP with our own working code.

Proposal

For our 5G Fixed Wireless Access, we will have an SD-WAN running on our network. For the use case, we will be purchasing a service from Vodafone's Portal and the SD-WAN will be able to send the request through the network to apply for the order.

• SD-WAN will use 5GICE middleware for underlay.
• SD-WAN will be provisioned as hub-spoke topology.
• 5GICE will provide TMF based Service Order APIs to provision underlay.
• Demo setup will include WAN links and LAN link for hub and spoke.

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MOVING TO EL ALTO

Note from Atul Purohit (Wed Jan-16, 2019):

When we started putting this use case together, the understanding we had (for 5G) is going through a whole lot of changes, 3GPP’s 5G specs in run up to R16 itself is completely changing to SBA oriented architecture and that changes the modelling thinking that we had. Plus the use cases for D for 5G are trying to mature ONAP for PNFs and Core / Radio components of 5G – a services play would come in on top imminently and in next release we would presume. We have also partnered with University of Surrey (we have invited them to take LFN membership, and they are) and will perhaps work with Nokia to progress this use case, but for Release D, I think we are a bit pre-mature. We would strengthen the use case with some additional bits (on IoT / SDWAN over 5G) that we have learned and come back in Release E. Would it be possible to omit this use case from Wiki page ? we will create another one targeted for Release E very soon.

References

Links to any additional resources referenced in or related to this proposal.

Requirements

• Customer Portal

  • Order portal with a shopping cart ordering process for services

  • The user selects a service from a catalogue, then
  • Either order an end-to-end service from ONAP network or a network slice from 5GICE
  • Will implement the TM Forum API's for:
    • Service Ordering
    • Service Inventory
    • Service Catalogue
• Service Design
  
  • Design, Create and Deliver an end-to-end service.
  • TOSCA-based templates that enable rapid programming into the network services.
  • Creating and deploying services from end to end in this environment by integrating with SDN controllers, domain-specific element managers or orchestration.
  • Modular/programmable/template structure supports control of multiple diverse domains: clouds, 5G core, SD-WAN, NFV, and more.
• Service Orchestration
  
  • Expose the catalogue(service specifications), inventory (service), network slice parameters (NSD) to the northbound system.

  • Configure the relevant network slice parameters, bandwidth, throughput, latency, jitter, etc.,

  • Route the packets via 5G core to hub and back to the customer site.

  • 5GIC Creates a network in OpenStack linked to the 5G Slice (Any VMs on the network has slice network connectivity)

• Service Activation
  

  • Instantiate the customer sites (Hub and Spoke)

    • Virtual CPE (vSRX)

      • Push configuration to vSRX

      • Connect the devices to the hub

      • Start IPSec tunnels forming SD-WAN Service

      • Apply firewall policies

User Journeys

Service Onboarding

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Service Catalogue API TMF633

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The customer configures service on the portal

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Service Order API (High Priority) TMF641

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Yes

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Service Inventory TMF638

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Solution Overview

Solution Overview

• ONAP platform capabilities will be leveraged for resource modelling and service orchestration

• 5GICE middleware will provide domain orchestrator capabilities for provisioning 5G network slice used as underlay in SD-WAN use case. 

External API

SDC

Service Orchestrator

SDN-C

A&AI

Implementation

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