Moving the Network to the Cloud: The Cloud Central Office Revolution and Its Implications for the Optical Layer

Ruffini, Marco; Slyne, Frank

doi:10.1109/jlt.2019.2891990

Cited by 31 publications

(14 citation statements)

References 40 publications

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“…From early approaches based on creating isolated groups of PON users [65], to complete frameworks for the virtualisation of the DBA (vDBA), previously introduced in Section 3.2. This extends the OLT virtualisation down to the data plane [66], by also virtualising the OLT scheduler [67]. The result is the ability for different VNOs to operate different DBA scheduling algorithms, so that they can fine-tune the scheduling to suit specific business models, or even applications, running in their PON slice.…”

Section: Software Defined Optical Access Networkmentioning

confidence: 99%

Evolution of Access Network Sharing and Its Role in 5G Networks

et al. 2019

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This paper details the evolution of access network sharing models from legacy DSL to the most recent fibre-based technology and the main challenges faced from technical and business perspectives. We first give an overview of existing access sharing models, that span physical local loop unbundling and virtual unbundled local access. We then describe different types of optical access technologies and highlight how they support network sharing. Next, we examine how the concept of SDN and network virtualization has been pivotal in enabling the idea of “true multi-tenancy”, through the use of programmability, flexible architecture and resource isolation. We give examples of recent developments of cloud central office and OLT virtualization. Finally, we provide an insight into the role that novel business models, such as blockchain and smart contract technology, could play in 5G networks. We discuss how these might evolve, to provide flexibility and dynamic operations that are needed in the data and control planes.

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Section: Software Defined Optical Access Networkmentioning

confidence: 99%

Evolution of Access Network Sharing and Its Role in 5G Networks

et al. 2019

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“…From early approaches based on creating isolated groups of PON users [54], to complete frameworks for the virtualisation of the DBA (vDBA), previously introduced in section 3.2. This extends the OLT virtualisation down to the data plane [55], by also virtualising the OLT scheduler [56]. The result is the ability for different VNOs to operate different DBA scheduling algorithms, so that they can fine-tune the scheduling to suit specific business models, of HAL is to map port pairs/VLAN on the physical system with virtual ports on virtual distributed OpenFlow switch.…”

Section: Software Defined Optical Access Networkmentioning

confidence: 99%

Evolution of Access Network Sharing and its Role in 5G Networks

Afraz¹,

Slyne²,

Gill³

et al. 2019

Preprint

Self Cite

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This paper details the evolution of access network sharing models from legacy DSL to the most recent fibre-based technology and the main challenges faced from a technical and business perspectives. We first give an overview of existing access sharing models, that span physical local loop unbundling and virtual unbundled local access. We then describe different types of optical access technologies and highlight how they support network sharing. Next, we examine how the concept of SDN and network virtualization has been pivotal in enabling the idea of “true multi-tenancy”, through the use of programmability, flexible architecture and resource isolation. We give examples of recent developments of cloud central office and OLT virtualization. Finally, we provide an insight into the role that novel business models, such as blockchain and smart contract technology, could play in 5G networks. We discuss how these might evolve, to provide flexibility and dynamic operations that are needed in the data and control planes.

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“…The Merging Engine is the element that blends together all virtual bandwidth maps from the different VNOs so as to generate one physical bandwidth Map allocation) and the SDN control plane. Due to the real-time critical nature of receiving and transmitting status report messages from the ONUs (called DBRUs) and Bandwidth Map data, our latest implementation [8], [9] made advanced use of the Data Plane Development Kit (DPDK) toolkit to optimize the packet transfer through the physical host to and from the Virtual Network Functions.…”

Section: Fig 3 Vdba Edge Compute Stackmentioning

confidence: 99%