control plane with sdn & nfv - ptc · first sdn field trial use cases bandwidth on demand cloud...

Copyright © Ciena Corporation 2015. All rights reserved. Confidential & Proprietary.

Control Plane with SDN & NFV

Steve Alexander Jan 2015

2 Copyright © Ciena Corporation 2015. All rights reserved. Confidential & Proprietary.

SDN and NFV

SDN NFV Virtualize: Networks Dedicated appliances and software

that provides network functions

Primary forum: Open Networking Foundation (ONF) European Telecommunications Standards Institute Network Function Virtualization Industry Specification Group (ETSI NFV ISG)

Deliverables: SDN standards and best practices Platform requirements / Use Cases

Driven by: End-Users (including major carriers) 20+ of the world’s largest carriers

Dependent upon one another?

SDN does not depend upon NFV NFV does not depend upon SDN, but NFV is enhanced by SDN


SDN Changing the consumption model

COMPUTE CONNECT STORE

Initial Carrier Use Cases for SDN

Subscriber Intelligence Strategies: Global Service Provider Survey


Planned Maintenance

Migrated Traffic

OSS Initiated

User or OSS Initiated

Auto-Restore Traffic

Auto-Discover Topology Discovery & dissemination of the topology across the network

Maintains a real-time view of the entire network’s connectivity

Topological changes rapidly disseminated

Connections are created across multiple layers

The network protects itself through things like dynamic gain equalization and conflicts in channel assignments

Originating node creates connections end-to-end inside the network (vs. centralized system doing node by node cross connects)

Multilayer PCE (Path Computation Engine) can route Cost, Latency or Admin weight

Network Defragmentation: Reduce route congestion

Connection optimization: Reduce latency on longer paths & Reduce number of touch-points

Multiple restoration types supported: 1:1, 1:N, Mesh, Ring, etc.

Provides restoration without duplication of equipment & Minimizes bandwidth usage

Traffic flow restoration based on optical layer failures

1 Automated self-inventory

2 Automated connection management

3 Efficient planning & operations

4 Self-healing network

Attributes of a Network Control Plane


OPn Reference Architecture

CONNECT USERS

TO CONTENT

CONNECT CONTENT

TO CONTENT

OPEN PROGRAMMING INTERFACES

D

Discovery

R

Restoration

Converged Infrastructure

O

Optical Services

PCE

Path Compute

S

Scheduling

IP IP Services

VM

VM Migration

E

MEF Services

Network & Platform Services Modules

Service Abstrac-on

OPEN PROGRAMMING INTERFACES

Control

Applications

Network Functions End-User Services

central offices become “content centers”

expensive network functions are centralized, disaggregated, and virtualized

Routing

Switching

Transport

Waves

Decreasing cost at equivalent capacity


Role of agile layers in SDN architecture

Converged

Packet O

ptical

OpenFlow

N

etConf

TL1, C

OR

BA

Control Layer

Multi-Layer PCE App Topology

“SDN Controller” ODL

VWAN

NB

A

PIs

Agile layers enable a programmable network

foundation that is responsive to application

needs.


First SDN Field Trial Use Cases

Bandwidth on Demand

Cloud Infrastructure

PrivateDC

PrivateCloud

HybridCloud

PrivateDC

PublicDC

PublicDC

Cloud Access, Inter-Data Center, Ethernet Services

Next GenPacket Optical

NetworkSDN

Ecosystem

Multi-Layer Control & Optimization

Datacenter Interconnect – Private Cloud & Carrier Cloud Interconnect

10G UNI

10G UNIOn-demand servicesData Center OVPNOTN Mesh Network


Example of SDN Multilayer Control

One Network

DWDM Services

OTN Services

Packet Services

The Intelligent Network

New ip packet flow here Results in a new wavelength connection here to reduce hop count / latency.


Example of Flow Optimization & Network Defragmentation

Wave Switching

Layer-1 Switching

Packet Switching Multi- Layer

Control

Full flows are rolled to Layer-1 containers

Full containers are rolled to Wavelengths

Automated, Resilient, Efficient


Core

Metro A

Metro B

Single I-NNI

(1,000+ NEs)

Intelligent Tails

(10,000 NEs)

Access & Aggregation Subsea

Distributed Control

Applications

Single Logical Network • Seamless End-to-end

visibility & control

• Network evolution at lower cost w/ flawless service migration

• Multi-Layer Control Plane

• Enhanced fault isolation & restoration

One from Many Many from One

O-VPN for all types of services/customers

AT&T’s Optical Mesh Service (OMS) “puts the power and reach of the AT&T network directly into your hands by delivering a service that gives you the freedom to determine how you want to structure your network for optimum control and business value”

– AT&T OMS Datasheet

• Optical – VPN’s: Privacy & Perf. of private network w/new economics

•  Independent control plane per O-VPN

• Shared bandwidth for dynamic BoD services (cloud)

Submarine Platinum

Restoration (MR-SNCP)

Financial Latency Aware

Routing/Restoration

Event Driven Video

Bandwidth on Demand

New Network Virtualization Model


Private Line App

Cloud Sync App

VM Migration App

Optical VPN App

Recovery App

Load Balance App

Encryption App

WAN Acceleration App

APP APP APP APP

APP APP APP APP

CONNECT USERS TO CONTENT

CONNECT CONTENT TO CONTENT

SDN = The Network Becomes a Programmable Platform

NE NE NE

NE NE

NE

NE NE

VNFs


Programmable Platform

Enabling the On-Demand Network of Connect, Compute & Store

Physical Network

Virtual Slice A

Virtual Slice B

Virtual Slice C

SDN Infrastructure hosting NFVs for each user

Mission C

Mission B

Mission A

app 7

app 1 app 2 app 4

app 6 app 7

app 2 app 3

app 5 app 6 app 8

app 1 app 3

Programmable SDN Infrastructure

Serving Multiple Missions

Mission-Defined Apps



Dedicated Virtual Packet Switches

Controller

Controller

Controller

Missions Manage their Services & Flows

control plane with sdn & nfv - ptc · first sdn field trial use cases bandwidth on demand cloud...

Documents