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CORDとVCO:NGCO (次世代セントラルオフィス) への道

CORD and VCO: Paths to the Next Generation Central Office

発行 Heavy Reading 商品コード 809116
出版日 ページ情報 英文 102 Pages
納期: 即日から翌営業日
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CORDとVCO:NGCO (次世代セントラルオフィス) への道 CORD and VCO: Paths to the Next Generation Central Office
出版日: 2019年03月19日 ページ情報: 英文 102 Pages
概要

当レポートでは、NGCO (次世代セントラルオフィス) 現象について調査分析し、CORD (Central Office Rearchitected as a Datacenter) の進捗状況、VCO (仮想セントラルオフィス) の登場など、見通しや導入予測について、体系的な情報を提供しています。

第1章 エグゼクティブサマリー

第2章 業界NGCOと新興NGCO

  • 業界フォーカスのシフト:5G、エッジ、クラウド
  • セントラルオフィスはどこへ
  • オペレーターとベンダー
  • クラウドネイティブのエコシステムの登場
  • オープンソースの重要な役割
  • NGCOのユースケース

第3章 ONF (Open Networking Foundation) によるCORD

  • 歴史
  • 新しいCORDのフレームワーク
  • SEBA
  • Trellis
  • 無線のCORD

第4章 OPNFV (Open Platform for NFV) によるVCO

  • 画一的な建設
  • 無線のVCO

第5章 CORDとVCO:比較

  • モジュール方式
  • SDNコントローラー
  • フレキシビリティ
  • 競合
  • CORD vs. VCO
  • 消極的な競合企業
  • ケーススタディのフラグメント

第6章 結論

目次

Operators face intensifying competition from webscale over-the-top (OTT) companies that threaten operators' sustainability. At the same time, data demands from new technologies and services, including the Internet of Things (IoT), artificial intelligence (AI), high-definition (HD) video, and augmented reality (AR)/virtual reality (VR), promise to explode, straining their own limited network resources.

Part of the answer to making operators' costs and agility more competitive with OTTs is virtualization of network hardware into software. A particularly crucial location for this will be the central office (CO), usually composed of hundreds of separate and proprietary purpose-built boxes that are costly to maintain, hard to manage, and collectively non-programmable.

The emerging next-generation central office (NGCO) concept combines the strengths of network function virtualization (NFV), software-defined networking (SDN), and the cloud to virtualize these boxes into software running on commodity equipment for reduced cost and radically increased flexibility. The NGCO recreates the CO in a new and efficient digital form, more like a data center, helping operators save money, flexibly introduce and modify services, and compete more effectively in the digital age.

The first well-known open-source NGCO model was Central Office Re-Architected as a Data Center (CORD). promoted by the Open Networking Foundation (ONF), which proposed a defined set of open-source software and commodity hardware and a recipe for integrating them. This was analyzed in a 2017 Heavy Reading report, CORD and the Future of CSP Automation. More recently, the Open Platform for NFV (OPNFV), another open-source organization, launched an alternative model called Virtual Central Office (VCO).

A majority of major carriers worldwide have implemented some version of NGCO architecture, often without public notice in a handful of COs and sometimes more - whether using CORD or VCO models or, more commonly, an amalgamation of them and other elements. They have modified these models in line with operators' existing internal systems and technology preferences, mixing and matching what works best with their own network management, business/operation support systems (B/OSS), and technology predilections. Currently, only a relative handful of COs are NGCOs, but Heavy Reading projects that NGCOs will serve close to half of all U.S.-based end-customers by sometime in 2022.

VCO has not displaced CORD as the leading NGCO model. The two are not so different, and the operator end-result is likely to be something that resembles both but follows neither's reference design in detail. Operators will experiment, replacing current network hardware with different combinations of software stacks and virtual network functions (VNFs), sourcing from various options and curating individualized service configurations.

Cord and VCO: Paths to the Next Generation Central Office examines the NGCO phenomenon, prominently including the progress of CORD and the emergence of VCO as operator open-source reference designs. It examines and compares both models', highlighting strengths contributing to their growing acceptance and projecting their outlook and overall NGCO adoption against the backdrop of contrasting operator and vendor perspectives on virtualization.

Table of Contents

1. EXECUTIVE SUMMARY

  • 1.1 Key Findings

2. THE INDUSTRY AND THE EMERGING NGCO

  • 2.1 Shifting Industry Focus: 5G, the Edge, and the Cloud
  • 2.2 Whither the Central Office?
    • The Value and Promise of the NGCO
    • NGCO Applications
    • VCO Follows on CORD
  • 2.3 Operators and Vendors
    • Carrier Collaboration, Vendor Reluctance
    • A New Role for Vendors? Or a Role for New Vendors?
  • 2.4 Rise of the Cloud-Native Ecosystem
  • 2.5 The Growing Role of Open Source
    • Open-Source Organizational Politics, the ONF and OPNFV
  • 2.6 NGCO Use Cases
    • The Centrality of Wireless
    • Perspective from the Edge

3. ONF's CORD

  • 3.1 History
  • 3.2 The New CORD Framework: SEBA, Anyone?
  • 3.3 SEBA- Virtualized Broadband
    • CORD to SEBA: Identity Transition or Crisis
    • Is CORD still CORD?
  • 3.4 Trellis - NFV Fabric
    • UPAN - Next-Generation SDN
    • ODTN - Open Disaggregated Network Equipment
  • 3.5 Wireless CORD

4. OPNFV's VCO

  • 4.1 Off the Shelf Construction
  • 4.2 VCO on Wireless: Five-Way Partnership to 2.0

5. CORD AND VCO: A COMPARISON

  • 5.1 Modularity as Destiny
  • 5.2 SDN Controllers: ONOS and ODL
  • 5.3 Flexibility is our Middle Name, Isn't It?
  • 5.4 Is this Competition, or What?
  • 5.5 CORD vs. VCO: Beyond Controllers
  • 5.6 Reluctant Competitors: How the Models View Each Other
  • 5.7 Case Study Fragments
    • SDN vs. SDM: AT&T Case Study Fragment
    • Operator's Journey - CenturyLink Case Fragment

6. CONCLUSION: LOOKING FORWARD

  • 6.1 NGCO Implementation
  • 6.2 Operator's Journey - Case Study Fragment: CenturyLink
  • 6.3 Implications of Virtualization
  • 6.4 Projections: Inadequate Experimentation, Inevitable Surprise

TERMS OF USE

CASE STUDY FRAGMENTS (2)

  • AT&T (NYSE: T)
  • CenturyLink (NYSE: CTL)
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