OPEN TELCO:A take on the Virtual Central Office0930-1000

Hanen Garcia, M. Eng.Global Telco Solutions ManagerRed Hat, Inc.

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CENTRAL OFFICE

Current Status

● Huge Source of CAPEX and OPEX

● Closed, Rigid and Complex

● Variety of access devices

● Variety of purpose built hardware

● Lack of standard interfaces => Lack of

programmability

Desired Status

● Reduction CAPEX and OPEX > 30%

● Open, Flexible and Standardized

● Cloud based Model

● Software Defined and virtualized

infrastructure

● Full programmability

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Service Agility – End to End Operational Efficiency

Lower CostsImproved Customer

Experience

Define a cloud native approach for a virtualized central office leveraging NFV and open source technologies

VIRTUAL CENTRAL OFFICE

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VCO is a reference architecture based on three important principles

1. OpenDaylight as a common controller for both the virtual network overlay and

the physical network fabric underlay

2. OpenStack as a common platform, for both NFV Infrastructure and VIM, to

ensure an orchestrator agnostic framework

3. Consolidation of control plane functions into the virtualized infrastructure and

the distribution of the data plane into the network fabric

VIRTUAL CENTRAL OFFICE PRINCIPLES

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• Residential services

• Internet broadband access

• Business services

• Remote & Branch Office (ROBO), Enterprise CPE

• Mobile services

VIRTUAL CENTRAL OFFICE SCOPE

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BRANCH OFFICE SIMPLIFICATION● Router with the following services

● WAN connectivity with IPSec

● WAN Optimization Appliance

● Firewall

● Intrusion Protection

● Branch Compute

● DNS

● AD/LDAP agents

● Physical Security Applications – Video

Monitoring, Security Sensors, etc.

● PBX

● Wireless LAN Controller

PBX

RouterDNS, LDAP, DHCP

Wireless LAN Controller

FW

Converged Branch Virtualized Environment Compute, Storage and Apps

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BUSINESS & RESIDENTIAL SERVICES

Virtualized Central Office

Branch OfficeRaleigh

Internet

Residential vCPE

Enterprise vCPE

Residential NID

Raleigh, NC Branch Office Beijing

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RESIDENTIAL SERVICES - vBNG MODEL

Subscriber vBNGPPPoE over VLAN

GPONvRouter

ODL

vOLT

SubscribervBNG vRouter 802.1x and or VLAN

DPI

DPI

DoSFW

DoSFW

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BUSINESS SERVICES - ENTERPRISE vCPE

vCPE vRouter VPNFW

Branch OfficeBeijing

InternetVirtual Central Office

Raleigh

Head OfficeRaleigh

Secure Tunnel

Local BreakoutPoint-to-Point FiberOR

Ethernet Connection

Service Chain per Customer

VxLAN per site

vRouter

Lenovo Server

vRouter

vCPE

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HARDWARE & SOFTWARE STACK

NFV Orchestrator

NFVI

VNF Manager

Service Assurance

SDN Controller

Network Fabric

Compute - Storage

Element Manager

Element Manager

Element Manager

Element Manager

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GP ServersOCP Servers

VIRTUAL CENTRAL OFFICE LAB

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VIRTUAL CENTRAL OFFICE LAB

Remote access via VPN client

Controller Controller Controller

ODL ODL ODL

Compute

Storage

Compute

Storage

Compute

Storage

UndercloudJump Host

3x OCP servers

3x OCP serversGP server

Residential Subscribers Business Subscribers

3x GP servers

GP server

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Residential ServiceVideo

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RESIDENTIAL SERVICES - vBNG MODEL

Subscriber vBNGPPPoE over VLAN

GPONvRouter

ODL

vOLT

SubscribervBNG vRouter 802.1x and or VLAN

DPI

DPI

DoSFW

DoSFW

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Business ServiceLive Demo

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BUSINESS SERVICES - ENTERPRISE vCPE

vCPE vRouter VPNFW vCPE

Branch OfficeBeijing

InternetVirtual Central Office

Raleigh

Head OfficeRaleigh

Secure Tunnel

Local BreakoutPoint-to-Point FiberOR

Ethernet Connection

Service Chain per Customer

VxLAN per site

vRouter vRouter

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Service Assurance

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OPNFV BAROMETER

▪ Project Strategy:

– Ensure platform metrics and events are accessible through industry standard interfaces.

– Demonstrate how platform technologies can be monitored, consumed and activated in real time

– Support relevant metrics and events for capacity planning, trending and operational status

– Showcase OPNFV centric SA capabilities.

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MONITORING RESIDENTIAL SERVICES

compute 0 compute 1compute 3vBNG

FRWD-1

vBNGVRP-21

vBNGVRP-22

F5DPI

F5DoS

Protection

Instance

Collectd Running on the host

GrafanaInfluxdbInstance

Host TelemetryVNF Telemetry (from the hypervisor)

Host TelemetryVNF Telemetry (from the hypervisor)

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END TO END SERVICE ASSURANCE

Network Transformation

Service Assurance Tools

PHYSICAL

SBC

DSLAM MGW

WAG MGC

VIRTUAL

vFW

vSBCvMGCvCCAP

vBNG

vDNSvPCRF

vTAS

COTS HW

Automation

PCRF

InfinistreamNG(PHYSICAL)

InfiniStreamNG - vStream(VIRTUAL)

HYBRID NETWORK

Seamless End to End Assurance

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SUMMARY● Virtual Central Office allows a common architecture that can be scaled for all types of COs and Network

● NFV allows us to virtualize network functions and services easily

● OpenStack platform has matured and now used widely as NFVI and VIM

● In addition to vBNG, vFW or other services such as Edge Compute for IoT and Mobile applications, Video caching and vBBU for C-RAN can be deployed at virtual CO

● OPNFV has worked hard to provide tools and testing guidelines for operators to ensure real world deployments

● Open source tools and components are now available to build the virtual CO

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WHAT’S NEXT?

● VCO Mobile○ Radio Access Network (vRAN)

○ Evolved Packet Core (vEPC)

● Status○ OPNFV Project - vRAN

○ PoC Lab in San Jose

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Solution Brief

Open Source Project Spins Up A Virtual Central Office

Whitepaper

VCO : Building a Virtual Central Office (VCO) with open source communities and components

RESOURCES

Mahalo!

Hanen Garcia, M. Eng.Global Telco Solutions ManagerRed Hat, Inc.

hanen.garcia@redhat.com