sdn & nfv – where are we and where are we heading?

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SDN & NfV – where are we and where are we heading?

beatty@cyaninc.com

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Rel. 3.2, Rev. 1 – 701-0003-01-03-02

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Agenda

Router Offload WAN & Cloud– integration and orchestration NfV

Cyan Confidential 2

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Router Offload

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L3 Router Offload Service Orchestration Use Case Internet edge Offload

Extending the life of edge interfaces by keeping intra-metro traffic in the metro

Data Centre Gateway optimization Selective routing of inter-DC traffic before traffic hits the DC

gateway. Provide fine-grained control of traffic flows to support low

latency/cost DC interconnect

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Layer 3 Offload Use-Case

IP/MPLSCore

IBGPIB

GP

PE #1

Route Reflector

Static routing/eBGP

L2 Aggregation

CPE #1

CPE #2

CPE #3

CPE #4

PE #2

j

L2 AggregationL3 Offload #1

L3 Offload #2

j

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L3 Router OffloadOrchestration Requirements OpenFlow used for south-bound control to keep the

solution open & flexible. Dynamic OpenFlow methodology used to discover

offload physical topology. SDN controller talks BGP to learn logical topology. Mapping between existing and new offload topology

configured via API. Policy-Based Offload:

Traffic analysis determines candidate routes for offload L3 switch FIB limiting factor in solution scalability

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IP Edge Offload Orchestration

IP/MPLSCore

iBGPiB

GP

PE #1

Route Reflector

Static routing/eBGP

L3 Switch &Aggregation

CE Router #1

CE Router #2

CE Router #3

CE Router #4

PE #2

L3 Offload #1

L3 Offload #2

iBGP

j

Provisioning, monitoring, dynamic forwarding

policies, etc. OpenFlow Stack iBGP Stack

SDN Controller

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DC Interconnect Offload

Static routing/eBGP

L3 Offload #1

L3 Offload #2

Provisioning, monitoring, dynamic forwarding

policies, etc. OpenFlow Stack

IP/MPLSCore & Transit

Data Centre 1

Data Centre 2

wss

wss

SDN Controller

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WAN + CloudService Orchestration

SDN Use Case

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Data Center Interconnect (DCI) Scenario Virtualization has made compute all singing and

dancing Network aren’t currently as agile

Lack of orchestration mandates too much or not enough…

Data

Cen

ter

Data

Cen

ter

Demand-based migration of VMs, compute tasks, and content

Ethernet & Optical Carrier Network

Insufficient resources or overprovisioned

bandwidth

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Enterprise toCloud Connectivity

OpenStack & Quantum

APIsNetwork

Virtualization

Customer Portal

Multi-VendorElementAdapters

Customer Front-End SDN Orchestration & Back-EndSLA

MonitoringSelf-

ProvisioningUsageBilling

PCE andA-to-Z

Provisioning

Performance Management

OpenFlow

OSS

Ente

rpris

e

Data

Ce

nter

Ethernet & Optical Carrier Network

Customer orders cloud service (e.g. IaaS)

1 Data center connectivity automatically provisioned

2

Automatic allocation of data center resources including VMs

3

Business Apps

Data

Ce

nter

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Multi-vendor POC

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NFV Definition and Framework

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NFV

14

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NFV

17

BRAS

NfV is an endgame which is enabled by SDN.

NfV needs cloud management stuff – and more.

Network & Application aware orchestration.

CDN

DPI

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NFV

18

Provider Edge SBC CDN DPI

MC

MC

PE

PE

MC

MC

PE

PE

MC

Mobile Packet Core BRAS

OSS

MANO

NFVO

MC

BRDPICDN

BRDPICDN

PESBC

PESBC

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BRAS Firewall DPILoad Balancer

OSS

NFVO

MANO

More Sub’s!

One more BRAS VM

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BRAS Firewall DPIMobile Packet Core

OSS

NFVO

MANO

5 more MPC VM’s

EMS

Footy’s on, getting busy over here!

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Provider Edge Firewall DPILoad Balancer

OSS

NFVO

MANO

Fancy enterprise service x for customer y

One slice of PE attached to… … a bit of DPI…a hosted

firewall and…

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Today

Data CenterResidential

Enterprise

Wholesale Enterprise

Wireless

Provider A

Provider B

Legend: - Network functions as specialized physical NEs

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NFV Initial Introduction

Data CenterResidential

Enterprise

Wholesale Enterprise

Wireless

Provider A

Provider B

Legend: - Network functions as specialized physical NEs

- Generic switch as physical NE

- Virtual network functions

- Data Center providing NFV Infrastructure services

Select NFs virtualized

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NFV Wider Adoption

Data CenterResidential

Enterprise

Wholesale Enterprise

Wireless

Provider A

Provider B

Legend: - Network functions as specialized physical NEs

- Generic switch as physical NE

- Virtual network functions

- Data Center providing NFV Infrastructure services

Majority of economically compelling NFs virtualized Larger freedom of (re-)location Consolidations