End-to-end network service deployment over multiple VIMs using a disaggregated transport optical network

5GPPP 5GTANGO project has extended SONATA NFV platform in order to be used to deploy network services over multiple Virtualization Infrastructure Managers (VIM), which are interconnected through one or multiple WAN Infrastructure Manager(s) (WIM). In this paper we present a WIM, developed in the context of 5GPPP METRO-HAUL, which is responsible for tackling the necessary connectivity services in order to interconnect the multiple NFV Infrastructure Points-of-Presence (NFVI-PoP). In this paper, we propose to use ONF Transport API (T-API) as WIM NBI, with the purpose to control the underlying optical disaggregated network. Using this interface, SONATA NFV platform requests the necessary connectivity through its novel T-API plugin.