ADTRAN Company Confidential ® Adtran, Inc. 2013 All rights reserved Chris Koeneman Vice President, Bluesocket Business Group

ADTRAN Company Confidential® Adtran, Inc. 2013 All rights reserved

Chris KoenemanVice President, Bluesocket Business Group

ADTRAN Company Confidential® Adtran, Inc. 2013 All rights reserved 2

Who is ADTRAN?

Leading provider of innovative networking and communications equipment – ADTRAN solutions enable converged

voice, data, video, and Internet services

– Broad customer base with solutions widely deployed by carriers and businesses of all sizes, worldwide ADTRAN Headquarters, Huntsville, AL

Smart, reliable solutions for today’s communications networks– 25 years of experience building innovative solutions supporting next generation

technologies– Continued market leadership in key technologies from integrated access, DSL, and

VoIP to routing

Dependable solutions for business and residential connectivity– Entrepreneurial engineering capabilities– Demonstrated financial competence


ADTRAN – Carrier Networks Divsion

Exchange

Provider’s Access Infrastructure

• Improve service provider access infrastructure

• Increase services for business & residential customers

• Broadband Access• Ethernet Aggregation• Optical Access• Business Ethernet Services

• Business Service Migration• IPTV• VoIP• Mobile Backhaul


ADTRAN – Enterprise Networks Division

Business Customers

•Value-based communication solutions for Small & Medium Enterprises

•ADTRAN solutions enable:•Branch Office Connectivity• Internet Access•Converged Access•LAN Switching•Wireless Access• IP Telephony/VoIP•Unified Communications


Bluesocket was a VC-backed company based in Boston high tech corridor

Bluesocket acquired by ADTRAN in August 2011

Acquired for innovative application of network virtualization to solve scale challenges in Wi-Fi networks

Bluesocket remains as a business group in ADTRAN

Bluesocket R&D remains in Burlington, MA, and has more than doubled since the acquisition


Network Compute

An Application Needs Both

Dreams of virtualization

Highly virtualized

Want to expose the difference? Ask about Disaster Recovery


Virtualization Starts Here

Physical DeviceService

Service is de-coupled from the asset on which it operatesService is not described on, associated with, or limited by any physical asset

Once Service is isolated, it can be defined in independent software: SDN

Separation


But can the network be virtualized?

Server Virtualization and Network Virtualization


But the Network is Different


Understanding Network Virtualization with a Venn Diagram

Network Virtualization

Katy Perry Golden Gate Bridge

Currently sexy

Incredible scale

Built in California

Success at least partly due to superior underlying infrastructure


1. Independence from network hardware

2. Actually reproduce the network service model

3. Follow operational model of compute virtualization

4. Compatible with any hypervisor platform

5. Isolation between applications, physical network, and control plane

6. Cloud performance and scale

7. Programmatic network provisioning and control

Seven Principles of Network Virtualization

Products and solutions adhering to these principles are appearing on the market


Server and Network Virtualization

Compute and Network will become

more symmetrical

Common set of software tools to both

set up both the compute side and

network side of an application

A symbiotic relationship between

Compute and Network

But can the network virtualize?

Here’s What’s Evolving


The Seeds for Network Virtualization are 40 years old

It starts with control plane separation

Is control plane separation something new?

SS7? What’s next? A discussion of rotary phones?


The Seeds for Network Virtualization are Present in IP Networks

• Separates functions

• End point independence and intelligence

• Tunneling options for control information


Define and Operate The Network in Software

SDN Central’s definition of Software-defined Networking (n) is: A new approach to networking that allow network operators more control of their infrastructure, allowing customization and optimization that enables invention of and delivery of new types of network services.


Wasn’t GMPLS going to unify the control plane?

A good idea…

…that got way too complicated

SDN has the potential to deliver on the promise of GMPLS


What Happened to GMPLS and derivatives such as GMPLS-TE?

Koeneman Law of Networking

Any networking protocol with an acronym that exceeds four letters is doomed to irrelevance…

…unless it has a slash in it like TCP/IP…or a mixture of small case with capital letters like vWLAN

SDN is often associated with network virtualization which is also referred to as Network Functions Virtualization or NFV. It is written as “SDN and NFV”. If it becomes SDNNFV, it’s

all over. If it becomes SDN/NFV, there’s a chance.


Does SDN imply OpenFlow?

OpenFlow is an example and not a forgone conclusion.

May suffer from least common denominator

problem while vendor specific implementations excel

REST is a good example


Understanding SDN with a Venn Diagram

Software Defined Networks

Some say it is mythical

Data centers actually encourage it

Detected in large bodies of water

Would change the world if it really gets loose

Loch Ness Monster Global Warming


SDN Far Fetched? Remember…

1998

2013

Someday, your network won’t be switching circuits but rather handling

packets of various lengths.

Someday, your network won’t be made up of switches and routers

but instead virtual machines controlling simple physical devices.


The Implication is Far Reaching

Service agility– Change the software to redefine

a service

Cost effective scaling– Control plane can be scaled

independently of the data plane

Higher reliability– Control plane interruption does

not affect the data plane

Greater throughput– Data plane device optimized for

throughput

But where do you start?Spiderman….

Seriously?


Access network– This is where services are defined and

users are classified– Take advantage of the service definition

advantage of network virtualization– But which access network?

Consider the Wi-Fi portion of the access network– Under tremendous scale pressure with the

number of Wi-Fi devices and usage patterns

– Economic scaling is the hallmark of network virtualization

Starting Point for Network Virtualization


Wi-Fi comes to you in the form of the WLAN

Different approach than your home Wi-Fi

Common WLAN is an access controller along with Wi-Fi access points

Access points simply bridge a user from wireless to wired

Access controller behaves as a switch and performs all the heavy lifting for the data sessions and service definitions

Antithesis of the principles of network virtualization


What is WLAN Virtualization?

Traditional WLAN

Service definition and data flow coupled at the controller

vWLAN

• Service definition and user control separate from the data flow

• Access point optimized for data forwarding• Service definition and user control in software in

a virtual machine

WLAN Controller Access Points Access PointsHypervisor

Management Plane

Control Plane

Data Plane

Physical / MAC Layer

Management Plane

Control Plane

Data Plane

Physical / MAC Layer

RESTAPIs


VPN, VLAN…Now think vWLAN

Leverages three key assets– Physical: Data Center– Computing Infrastructure: Hypervisor– Personnel: Application Programmers

But it goes further…

Network Virtualization Applied to the WLAN

If you are thinking this is a vWLAN, you haven’t

been listening


Centralized Cloud Control

Managed WLAN enterprise customer

Public Access HotSpot

NOC

WAN

No need for physical controllers at each site

All users controlled and all APs managed from NOC

Data sessions remain distributed at remote site

One architecture serving public access, managed services, and offload

Cellular Offload


Back Up NOC

Virtualization Enables Policing and Traffic Shaping at the Edge

Unwanted Traffic

Groomed traffic

Data Center or Network Operations

CenterControl plane scale a

function of data center capacity

Control traffic

Unwanted traffic is turned away at the access point and never enters the network

Traffic is prioritized at the access point

LAN Switch


Conclusion

Network virtualization will make network service definition symmetrical with application definition

Network virtualization solutions are available

An ideal target in the network is the access layer, specifically the Wi-Fi access layer

By applying network virtualization to the Wi-Fi access layer, tremendous benefits are realized in terms of economic scaling, high availability, cloud control, and security


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Chris KoenemanVice President, Bluesocket Business Group of [email protected]+1 781 996 9689

mailto:[email protected]

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ADTRAN Company Confidential ® Adtran, Inc. 2013 All rights reserved Chris Koeneman Vice President, Bluesocket Business Group