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NOTE: More participants are welcome.

Overview

Business Requirement

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Recap for Casablanca 

In Casablanca release, we propose CCVPN(Cross Domain and Cross Layer VPN) use case, in which scenario if a customer wants to set up a VPN from Beijing to London, we can use ONAP to stretch such a VPN service that is cross operator, cross domain and cross layer.
cross operator: the VPN service could be stretched between two ONAPs.
cross domain: a VPN service is cross diffrent OTN domains which is controlled by different 3rd parties
cross layer: the VPN service can be l1,l2,l3 or any composition of these layers, eg: a VPN service that is cross l2 and l3

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