ARMONIA: A Unified Access and Metro Network Architecture

Abstract

We present a self-configured and unified access and metro network architecture, named ARMONIA. The ARMONIA network monitors its status, and dynamically (re-)optimizes its configuration. ARMONIA leverages software defined networking (SDN) and network functions virtualization (NFV) technologies. These technologies enable the access and metro convergence and the joint and efficient control of the optical and the IP equipment used in these different network segments. Network monitoring information is collected and analyzed utilizing machine learning and big data analytics methods. Dynamic algorithms then decide how to adapt and dynamically optimize the unified network. The ARMONIA network enables unprecedented resource efficiency and provides advanced virtualization services, reducing the capital expenditures (CAPEX) and operating expenses (OPEX) and lowering the barriers for the introduction of new services. We demonstrate the benefits of the ARMONIA network in the context of dynamic resource provisioning of network slices. We observe significant spectrum and equipment savings when compared to static overprovisioning.

Metropolitan Optical Networks: A Survey on New Architectures and Future Trends

“…Composition and functioning: The ARMONIA architecture is an architecture that comprises the unification of the core segment (with MC nodes) and aggregation segment (with MA nodes) of the metropolitan network, as well as the access segment, which is self-configurable due to the implementation of monitoring with telemetry service [87].…”

“…This work focuses on bringing together these architectural proposals to discuss its main characteristics, advantages and disadvantages. Architectures like UDWSN [54], HnS/WDM [90], ARMONIA [87], DISCUS [79], MOMC [91], MEON [11], SIMON [3], TDGMON [45], FMN [1], DuFiNet [8] and DnW [100], for example, were designed with different objectives and concepts, and because they are very recent, they are not yet consolidated.…”

“…However, physical topology is not the only issue to be discussed among architectural trends for metropolitan networks. With an eye on the strategic functionality for the traffic of new services, the literature has shown that the metro and access segments have been planned together [52], [86], [87]. The Hub-and-Spoke (HnS) logical topology [84] is a proposal in which some nodes are designated as a hub, and works as a communication vehicle and aggregator between the other nodes, which are then designated as spoke.…”

“…The classification of multi-layer architecture fits the presented network architectures whose transport layer is multilayered, composed of electronic layer over optical layer. Architectures in this class are Pure OTN [42] presented on the Subsection III-A1, OTN over DWDM (OTN/DWDM) [72] cited in Subsection III-A2, UDWSN [52] in Subsection III-A3, in order of appearance in the literature, in addition to the HnS/WDM [90] in Subsection III-A4, ARMONIA [87] in Subsection III-A5, DISCUS [79] in Subsection III-A6 and MOMC [91] in Subsection III-A7, that are not OTN based.…”