New feature: euag_service_chaining_use_case.md

Service chaining use case

Proposer

EUAG

Type

Feature

Target MDG/TF

UI, SO, RO, VCA

Description

A SP wants to offer a service to corporations consisting of a VPN service with access to different types of endpoints (other corporate sites, Internet or public cloud) where each corporation can insert a custom chain of VNFs in the middle.

Selected traffic from corporates can reach an NFV datacenter. Once in the datacenter, the corporation can select which chains to be used for each traffic flow (i.e. classified) depending on e.g. the source and destination of the traffic. For instance:

• FROM Corporate site TO Amazon: chain A
• FROM Corporate site TO Internet: chain B
• FROM Corporate site TO Corporate site: chain C
• FROM a VPN connection from an employee TO Internet: chain D
• FROM a VPN connection from an employee TO Corporate Site: chain C

Demo or definition of done

N/A