Joint Optimal Service Chain Allocation, VNF instantiation and Metro Network Resource Management Demonstration

Abstract

Abstract:In a metro network with VIMs orchestrated by an ETSI-OSM instance, and an optical transport controller, we demonstrate optimized service chain provisioning using the open-source Net2Plan tool with interfaces to OSM (new) and transport controller.

The Net2Plan-OpenStack Project: IT Resource Manager for Metropolitan SDN/NFV Ecosystems

“…Both OpenStack and OSM provide multi-tenant capabilities permitting logical (and operational) isolation among different network carriers while sharing the same underlying infrastructure, which is referred to as slicing. Within the Metro-Haul scenario, we recently demonstrated the open-source planning tool Net2Plan [9] assisting an OSM instance in the optimal allocation and instantiation of network services (SCs) in a simulated transport network [10]. Subsequently, our demonstration in [11] included an ONOS controller to emulate the packet-layer network and considered the end-to-end latency requirements to perform the SC allocation, VNF instantiation and flow allocation.…”

Latency-Aware Optimization of Service Chain Allocation with Joint VNF Instantiation and SDN Metro Network Control

“…In our previous work [5], we demonstrated the specialized open-source planning tool Net2Plan [6] assisting an NFV-Orchestrator Open-Source MANO (OSM) [7] instance in the optimal VNF instantiation and Service Chain allocation directly in an emulated transport network. Two major limitations were present in [5]: the lack of a SDN controller to manage the network resources and the simplified data-plane emulation.…”

Open-Source Network Optimization Software in the Open SDN/NFV Transport Ecosystem

“…We concentrate on Net2Plan [11], an open-source Java-based software tool, which suitably embraces multiple features required in the optimization of SDN/NFV networks. Net2Plan capabilities for rapid algorithm prototyping are highlighted, also interacting with a wide range of commercial or opensource solvers [17], using a provided modeling library JOM (Java Optimization Modeler). Net2Plan merits are discussed to address the set of realistic previously referred use cases, and we deepen in the need to perform the optimization of the NFV resource allocation jointly with the mutli-layer transport resources decision.…”

“…The joint IT and optical transport network planning, and the optimized allocation of network services, relies in Metro-Haul project on Net2Plan tool, as a third party opensource software providing an OaaS. This has been demonstrated in the works [17] and [58], further detailed in Section IV. Within OpenStack, the Tacker project provides a generic VNF Manager and Orchestrator based on ETSI MANO Architectural Framework and provides a functional stack to Orchestrate Network Services end-to-end using VNFs [59].…”

“…Two Net2Plan prototypes have been developed for interfacing and optimizing OpenStack systems using the OpenStack4j [109] client for Java. First, in [17], [58] a Net2Plan GUI was developed to interface with OpenStack, as a part of the joint IT and network optimization efforts described in next section. Second, [53] is an ongoing project consisting of a Net2Plan GUI for visualizing and controlling an OpenStack, in those aspects related to identity management (Keystone service), computing resources (Nova service), network resources (Neutron service) and performance monitoring (Ceilometer service).…”