5 tenets of

instant

evolutionA guide for evolving

your network play in the data center

INSIDE

Infrastructure and Topology

Your foundation for digital transformation

Orchestration and Automation

Your way of dealing with added complexity

Analytics and Telemetry

Your way of reporting back on network intelligence

Software Defined Networking

Your way of boosting business agility

Security and Visibility

Your way to innovate without disruption

As Moore’s Law crosses critical thresholds, industries that were sheltered from radical innovation for decades, now face new entrants using a simulation and software-centric approach to formerly industrial products. This happened in telecom and biotech, and is now underway in the robotic, aerospace, automotive and agricultural sectors.

STEVE JURVETSONPartner, venture capital firm Draper Fisher Jurvetson Source: www.cnet.com

INTRODUCTION

For the past 20 years, Moore’s Law has become the primary driver of disruptive technology and, with that, the very idea of enterprise innovation. Despite the political, economic and social upheavals of the last two decades, the growth of computing has accelerated rapidly. And there’s no reason to suggest that this evolutionary path is about to hit the buffers anytime soon.

The digital age, of course, is embedded into the

fabric of our personal and professional lives, driven

by a powerful nexus of forces – data, mobile, social

and cloud. Look ahead another 10 or 20 years and

the outlook for the enterprise sector is exciting and

daunting in equal measure.

Analysts predict the ‘digital universe’ (number

of Internet users) will double in size every two

years. By 2020, that means 44 trillion gigabytes

of data. By 2023, we’re talking five billion users,

or two thirds of the global population. When you

add in the speed and consumption demands of

those users, the combined rate of acceleration is

bound to place unprecedented demands on the

underlying network infrastructure.

This digital world is also evolving into a tech-smart

populous with a strong belief that products and

services will revolve around their digital expectations.

Not the other way around. Consequently, a

worrying chasm has emerged. One where the

user’s idea of innovation (instant) isn’t matched by

the provider’s ability to deliver it (distant).

The situation is understandable given that many

enterprise data centers are crippled by aging or

obsolete equipment. A situation that is compounded

by networks which are creaking under the strain of

bandwidth and workload demands. And, at the

core of the issue, an over reliance on proprietary

hardware and software that places a time and

cost drag on the path to upgrade. Not to mention

an inability to automate manual processes which

effectively means that businesses are held hostage

by their own infrastructure.

INTRODUCTION

Analysts predict the ‘digital universe’ will double in size every

two years

2015 2017 2019

Agile players in the market, of course, are taking

wilful advantage of the situation. Picking off

business from bigger, slower moving and less

technologically advanced entities within

established or fast-growth markets.

The question is whether the enterprise can fight

back against the challenger brands by adopting a

business model (and IT infrastructure) that permits

– rather than inhibits – the instant evolution of

products and services.

The table stakes may be higher, but the pay-offs

could be limitless. Today, innovation needs to be

delivered at scale, velocity and lower cost. For many,

this will require an element of technological and

organizational transformation. But this presents

an ideal opportunity to reinvent the old business

model for the new world order. It creates a unique

opportunity to reposition your business to deliver

upon the philosophy of continuous transformation

– not just a momentary flashes of disruption.

It’s a journey that begins with evolving your

network in a way that streamlines business

operations and adds new revenue streams.

It’s a journey that will transform the role of your

networking team so that they can deliver best-in-

class uptime and availability – adding value, rather

than fire-fighting at every turn.

Towards that goal, we’ve produced this eGuide

with the aim of arming your business with the

five key tenets of a next-generation network.

One that is powered by a simple, open and

smart architecture that is designed to reduce

cost, accelerate growth and ease the path of

technological transformation.

Your customers expect instant evolution.

Now is the time to build the infrastructure to

deliver it. The Darwinist rules of the game are

set – it’s survival of the fastest.

INTRODUCTION

Security and

Visibility

Virtual and physical

Architecture and

Topology

Flatter, faster and open

Orchestration and

Automation

Broad set of tools

Analytics and

Telemetry

Correlation capabilities

Software Defined

Networking

Simplified integration

A SINGLE, COHERENT NETWORK

LEGACY IT DATA CENTER

ELASTIC, FLEXIBLE & ON-DEMAND

Fully automated and self-provisioned cloud

5 TENETS OF INSTANT EVOLUTION Your pathway to the cloud

The journey to the cloud is one best approached with the ultimate objective of achieving the path of least resistance. Resistance to change is Kryptonite. It places an unnecessary drag on the four most common enterprise goals: business agility, cost efficiency, customer satisfaction and operational stability. Therefore, the central question is: “how do I innovate without disrupting the business?”

Virtualization and automation are two common

answers to that conundrum. And while it’s true

that the share of virtualized servers and storage

will more than double over the period 2009-2016,

networks are still, in the main, designed to connect

physical hosts and physical networking services.

This is an architectural handicap that few

enterprises can afford, especially when many web

2.0 companies are unencumbered by such legacy

issues and have embraced a cloud-first approach

with network topologies to match.

Today, your task is no longer about getting the

network up and running. It’s about integrating

with applications and how you move with

unprecedented speed. It’s about instant evolution

in action. Virtualization, automation and SDN bring

efficiency benefits but are not a direct replacement

for your engineering resources.

Your guiding

principles

Virtualized servers

by 2016

will double

It’s about using those resources differently and

getting them to act more like developers and

programmers. To be sure, the task of evolving your

network isn’t getting easier or less complex. It’s just

different than it was before and reinforces the need

to follow certain values or principles in the process:

Simplicity

Easy to buy, deploy, operate and secure. Lower

opex costs, increased agility, enhanced customer

experience. Traffic should flow through fewer

boxes and layers, providing more speed and

greater throughput. Configuration and cabling

verification is automated, easing management

tasks and reducing human error. The fabric is

straight-forward to control with single pane

management and multiple nodes acting as a sole

device. Ultimately there is a sense of coherence

when interfacing with the network as a whole.

Allows customers to adopt SDN technologies

while remaining backwards compatible with

their existing network.

Openness

Flexibility is provisioned by widely adopted open

standards, signatures and APIs. Takes a common

building blocks approach with a spine and leaf

topology that is interchangeable across multiple

architectures and doesn’t dictate what your

strategy should be, leaving you at a dead end or

causing reinvestment in proprietary technology.

Easy to add new hardware and software tools,

code and processes. Simple to move jobs, apps

and traffic through data centers and public/private

clouds seamlessly. Efficient and interconnected.

Allows for best of breed solutions from different

vendors to interoperate and to be integrated in a

way that is flexible.

Intelligence

Smart, self-healing, proactive and secure.

Allows you to collate, correlate and control data

from across the network. Utilizes intelligence from

switches such as network analytics, buffer inputs/

outputs and granular interface statistics – and allows

you to do something with it. Takes information

from the network, firewall or router and correlates

the data with other technologies (SaaS). Permits

smarter decision-making based on the entire

technology ecosystem, not just components.

YOUR GUIDING PRINCIPLES

SELF EVALUATING

The most fundamental technology foundation for digital transformation is a strong digital platform – well structured, well integrated and only as complex as absolutely necessary.

LEADING DIGITAL:

Turning Technology into Business Transformation by George Westerman, Didier Bonnet, Andrew McAfee

Source: www.hbr.org/books

Modernizing your architectureIt’s clear that today’s network professional has a

lot to contend with. For example, the huge increase

in logical scale as data centers become more

densely populated. The unprecedented demand

for micro-segmentation as resources are

increasingly leveraged. The need for more robust

disaster recovery and elastic scaling techniques as

public cloud resources become more common.

Due to these demands, it’s important to quickly

identify what type of data center and underlying

network architecture you’re trying to build. Most

enterprises fall into one of three categories, but

which one best suits your philosophy?

Commercial

Plug and play approach. Off-the-shelf buyer who

places a high value on simplicity and has few

customization needs. Likely to invest in an end-to-

end software stack from a large, established

vendors with a good track record (i.e. VMware).

Open source

Flexible approach. Wants something out of the

ordinary, so will be frustrated by plug and play

solutions. They want customization, but don’t

necessarily want to do it all themselves. Good

levels of skills to take advantage of tools and

knowledge available in the open source

community (i.e. OpenStack).

SELF EVALUATING

Let’s look at the traditional versus virtualized

model for some answers:

Traditional data center

Resources are in silos with network or compute

resources allocated to specific customers or tied to

certain regions in the data center network. Network

services residing on physical appliances to support

load balancing, security and other added-value

services which are not distributed. Tasks are not

automated and orchestration is decentralized

meaning that you have a lot of different elements

to manage across storage, compute and

networking resources. Security is largely an

afterthought because the existing network relies

on adding hardware/software components to deal

with new threats.

Virtualized data center

Elastic, flexible and on-demand with lots of

automation and self-provisioning capabilities.

Resources are pooled, meaning that manual/

mental effort isn’t expended in thinking about

where to place a new application or service.

Service-chaining is possible by provisioning virtual

network functions (VNFs) on x86 resources that

are distributed for better load distribution.

Orchestration is centralized via tools that provide

open APIs and offer a single controller to deploy

applications. Security is integrated at the beginning

and embedded into the network to accommodate

modern traffic flows.

DevOps

Do it yourself approach. To one extreme, you have

highly-adept, self-reliant teams of professionals

with hardcore skills to build entire toolsets from

scratch rather than wait for the commercial

marketplace to supply what they need. (i.e.

Amazon, Google, Facebook) To the other extreme,

there are many organizations who aren’t quite

ready to test the waters with nascent technologies

like SDN and Cloud Orchestration, but now they

could benefit by starting to automate repetitive

tasks that are prone to human error and naturally

resource intensive. These enterprises are looking to

automate certain tasks on a schedule that fits their

risk profile (i.e. Python, Ansible, Puppet)

True enough, these categorizations can be

imprecise – particularly as many businesses will

evolve the network model over time. However,

it pays dividends to broadly define what your

infrastructure should look like in three, four or

even five years’ time. And, more importantly,

how you will get there.

Consider, for example, to what extent are you

looking to manage workloads across multiple

clouds or data centers. Do you need a deep level

of analytics and easy access to meaningful data?

How quickly do you need to cope with changes

in technology in order to remain competitive?

INFRASTRUCTURE AND TOPOLOGY

1st Tenet:

VLAN anywhere MC-LAG

MAC mobility Operational simplicity

L2 and L3 agnosticCentralized managementPlug & Play provisioning

Integrated monitoring

Layer 3 Routing ECMP for load balancing

No Layer 2 sprawlExtremely high scale

IP underlay fabricVXLAN, EVPN, etc overlay

Isolated data planeEmerging technologies

Multi-tierMC-LAG

Ethernet Fabric IP Fabric

IP Fabric with Overlay

MX L2/L3

L2 L2/L3

Virtual Network

L3 L3

MX L2/L3

L2 L2/L3

Virtual Network

L3 L3

MX L2/L3

L2 L2/L3

Virtual Network

L3 L3

MX L2/L3

L2 L2/L3

Virtual Network

L3 L3

CLOUD NETWORKING ARCHITECTURES Your foundations for a service-led infrastructure

Modernize your physical infrastructureThe physical network is analogous to the foundation

of your home. It doesn’t matter what décor you

choose or what finishes you select – if the footings

are not engineered or installed properly you’re left

with a severely compromised environment to live with.

The technological attributes and overall design

of the physical network are crucial components

of being able to layer on emerging technologies.

With this, you open the door to things like network

virtualization and modern orchestration and

automation tools, which can be easily integrated.

Most importantly, you get the scale and

performance your applications require.

As data centers become more dense and applications

more robust, we are seeing heightened levels of

traffic generated between hosts within the data

center. Typically, we refer to this as East-West

traffic. In order to support this shift – as well as the

rapid increase or decrease of resources that need

to be connected – networks need to become flatter

and provide significant scale out capabilities.

It’s important that, regardless of the architecture

you choose today, your hardware can be

repurposed as your business grows or your

requirements evolve. Don’t get locked in or it

can get very costly, very quickly.

Even if you’re not ready to take the plunge yet,

it’s undeniable that automation, centralized

management, plug and play provisioning and

SDN integrations are critical factors in boosting

competitiveness. In your current situation some of

these solution might seem far-fetched, but we live

in a world where technology is evolving at the

speed of light. So, with that in mind, it’s key to

build a foundation that will allow you to do all

of this and more.

Make sure that you have the logical and physical

scale that allows you to grow. Make sure that your

network gets out of the way and fast-tracks the

evolution of your enterprise.

ORCHESTRATION AND AUTOMATION

2nd Tenet:

While cloud adoption has definitely accelerated, user experience has become a major concern for enterprises. They are facing challenges in terms of poor levels of self-service, insufficient transparency and lack of operational simplicity. These need to be addressed immediately as integration and orchestration are critical success factors in an effective hybrid cloud environment.

VISHNU BHAT

President and global head, cloud and infrastructure services, Infosys

Source: www.computerweekly.com

With an open-standards based architecture and flat topology in place, you’re in a position to introduce added levels of automation and centralized orchestration to deal with the added complexity and workloads.

Automation is about speeding up IT workflows at

scale while eliminating errors. It helps to eradicate

repeatable, manual tasks through scripts and other

software tools, while orchestration is an extension

of automation – grouping automated tasks into

coordinated workflows.

Automation is very much a tools-led approach and

you’ll need to draw on a broad set of technologies

to create overlay networks that seamlessly

virtualize your infrastructure to accommodate

virtualized, multi-tenant data centers and clouds.

Again, you’re looking for common standards and

open APIs to help create virtual networks that

will support new services, contribute business

agility and drive revenue growth. The best way to

approach this is through a lifecycle approach to

infrastructure management, which can broadly be

divided up into the four phases described overleaf:

ORCHESTRATION AND AUTOMATION

2nd Tenet:

Automation brings numerous benefits, including

lower capex, reduced risk against technology

obsolescence and network misconfiguration.

However, before accelerating your journey and

the sophistication of your stack, it’s important to

walk before you run. By all means start now and

shoot high, but only evolve as your knowledge,

experience and comfort levels grow.

Nobody has a crystal ball to forecast which future

technologies will rise to the top and become widely

adopted or best-in-class. There are no guarantees,

so it’s vital to stand by the guiding principles that

will serve you well indefinitely – custom silicon,

open standards, ease of integration.

PHASE 1: TEST & CERTIFY

Design ValidationNew product introductionsFeature certifications

PHASE 2: BUILD & DEPLOY

Configuration creationInfrastructure instantiationValidation testing

PHASE 4: AUDIT & TROUBLESHOOT

Compliance & RegulatoryFault remediationProactive escalation

PHASE 3: OPERATE & MAINTAIN

Inventory managementMoves/Adds/ChangesChange impact assessment

THE IT INFRASTRUCTURE LIFECYCLE Your four-phase management process

ANALYTICS AND TELEMETRY

3rd Tenet:

It can impair the customer experience. It can inhibit competitive advantage. It can impede operational efficiency. A performance gap in the data center isn’t just a problem for IT; it’s a problem for the entire business.

FROM DATA CENTER METRICS TO DATA CENTER ANALYTICS:

How to Unlock the Full Business Value of DCIM CA Technologies (April, 2013)

Source: www.ca.com

Due to growing data and bandwidth demands, hardware is experiencing unprecedented levels of stress that often compromise uptime, security and compliance – not to mention the associated monetary and reputational costs. Consequently, network intelligence is playing a critical role in firms’ ability to instantly evolve new or improved on-demand products and services.

Correlating and reporting back on network

intelligence is essential if the enterprise has any

hope of keeping up with the pace of innovation

while conforming to SLA obligations – especially

as network virtualization becomes more pervasive.

The collection of data right across the network –

not just within the platform, application or device

– enables firms to proactively observe and act on

trends more easily, quickly and accurately.

With deep analytics and telemetry capabilities

– coupled with correlated view of the network –

the enterprise is able to forge a single, coherent

network. One that aligns performance to

application requirements. One that provides

transparency into physical and virtual layers

for simpler operations. One that improves

coordination between teams for better application

delivery and experience.

The first step is to invest in a next-generation

cloud analytics engine that will record and audit

historical data, identify vulnerabilities, locate

bottlenecks and proactively reduce the time to

repair (using automation techniques).

ANALYTICS AND TELEMETRY

3rd Tenet:

Combining this with a single pane of glass solution

will ensure a 360 degree view of the technology

ecosystem and trigger numerous benefits in terms

of network direction. Firstly, you’ll enjoy a holistic

and correlated view across topologies, overlays,

underlays and physical/virtual connectivity.

Secondly, it will result in a smarter, more proactive

network with deep analysis and telemetry.

Finally, you’ll gain control over lifecycle and

workflow automation – bringing with it scalable

and resilient multi-site management.

intelligence will

instantly evolve

enable you to

Network

SOFTWARE DEFINED NETWORKING

4th Tenet:

By 2020, most networks will have optimized SDN-capable hardware.

THE EVOLUTION OF SDN AND NFV

Orchestration, Infonetics Research (now IHS) (February, 2015)

Source: www.juniper.net

The primary role of SDN abstraction is to make the network simpler by removing complexity and making operations and provisioning process more straight-forward and direct. SDN in the data center provides an effective network overlay that can offer benefits such as micro-segmentation, more streamlined provisioning, and centralized control.

For many, SDN will accelerate the speed of new

service deployments, helping to boost business

agility and revenue growth in the process. But,

to do so, you’ll need hardware (switches, routers,

gateways, controllers etc.) that is capable of high

levels of performance, integration and analytics.

The rise of smartphones, tablets and the Internet

of Things has made traffic more dynamic and

unpredictable. This has enterprises contending

with spiking demand during peak periods and

the fear of over-provisioning during lulls.

Such a large-scale problem demands a holistic

approach. One that combines innovations in both

hardware and SDN programmability to deliver

more scale, multilayer traffic optimization and

increased efficiency.

Routers Routers

Virtual & Physical Security Virtual & Physical Security

Switching fabric Switching fabric

Private Cloud Private Cloud

SDN CLOUD SDN CLOUD

Hosted/Managed

Public Cloud (Hybrid)

Internet

WANCampus &

Branch

Centralized management and

orchestration

Your network virtualization and intelligence

solution should comprise all the components

needed to create a virtual overlay network,

including: SDN controller, vRouter, and analytics

engine. It should provide you with a simple way

to connect physical networks with a virtual

environment and provision underlying services.

For those configuring the network, it should

reduce time, cost and risk.

To eliminate the risk of vendor lock-in, the solution

should leverage a standards-based architecture

that integrates with a wide variety of hypervisors,

physical networks and cloud orchestration

platforms. It should also seamlessly integrate

with most industry switches and routers today,

providing a quick and easy migration path to SDN

without any disruption to underlying physical

network architecture and investment.

Together, these attributes will accelerate the

connection of virtual resources and enable the

federation of private, public or hybrid cloud

environments. Most importantly, this will increase the

speed of business and service innovation by making

the network more dynamic, flexible and automated.

END-TO-END SOFTWARE-DEFINED NETWORKING Your multi-data center, multi-cloud, one network solution

SOFTWARE DEFINED NETWORKING

4th Tenet:

SECURITY AND VISIBILITY

5th Tenet:

By definition, big providers - such as Amazon and Google - should be much better at securing data. But CIOs need to be aware that convincing the rest of the business about the benefits of the cloud can be a slow process, especially when it comes to issues of governance, security and approval.

OMID SHIRAJI

CIO Working Links

Source: www.zdnet.com

Security policies are often bound to geographic locations and delivery platforms (hardware or software), increasing overall complexity. Thanks to the way security has evolved in the DC market, businesses are frequently forced to stitch together different products to address different areas within their data center.

These realities are due largely to how businesses

have evolved through organic growth, mergers and

acquisitions, expansion and consolidation. The

problem in this environment is that applications

are effectively caged by their geographic location

and because of the fragmentation of the network

and security solutions.

This makes the sharing of information, assets

and data much more difficult due to the

aforementioned complexity, security policies,

compliance and performance concerns. So, while

it should not matter if an application is coming

from a local, remote or a cloud data center, the

reality today is that it does.

In order to truly achieve the IT agility necessary

for applications, these data centers need to be

coordinated and interconnected. Resources need

to be shared not just within, but also across DCs,

and this can only be done with the right network

foundation.

There’s no point building a flat data center

and then having the firewall off to the side. It’s

important to integrate everything from the

beginning, identify which protocols are used and

how intelligent the network needs to be.

Focus on dealing with threats proactively and

dynamically. Focus on virtual security at front end

with high physical throughput. Focus on having the

same policies but with seamless provisioning to

the cloud. Only then can you extend more of the

network and workloads to the cloud.

SECURITY AND VISIBILITY

5th Tenet:

High scale and performance

Consolidation of multiple security services (i.e., firewall, IDS/IPS, WAF, etc.) onto one system

Tight integration between data center firewall and data center networking technologies

Advanced network security analytics capabilities

Ability to deploy and operate physical and virtual firewalls for use in the data center from one management platform

Network segmentation capabilities

42%

34%

34%

32%

30%

26%0% 10% 20% 30% 40% 50%

In your opinion, what are the most important requirements of a data center firewall?(Percentage of respondents, N=397, three responces accepted)

Source: Enterprise Strategy Group, 2014

ENTERPRISE DATA CENTERS Security and firewall priorities

CIOs need to change how parts of

their tech management organizations

work — governing and measuring them

based on business outcomes instead

of on project execution. Plus they need

to evolve a culture that embraces

responsiveness and rapid, continuous

improvement to changing customer

needs — something more and more

CIOs will derive from the best practices

of commercial software firms.

PASCAL MATZKEVice President, Research Director serving CIOs, Forrester Research, Inc. blogs CIOs Will Lead The Digital Change -- Or Be Usurped -- In 2015 (November 10, 2014)

CONCLUSION

CONCLUSION

It’s clear that IT enterprise data centers are on a path to more virtualization, more automation and more orchestration. In the age of digitization these are necessary steps in the quest to satisfy the growing demands of employees, regulators and customers. Every enterprise is at a different stage of the

journey to the cloud, but every stakeholder

is guided by the same basic goals – greater

performance and reliability. The five tenets

outlined in this guide are intended to ease that

path – whether you choose to tackle them

sequentially or in a modular fashion.

Whichever architecture you use to build or rebuild

your network, there should be no limits on the type

of data center you end up with. DCs are extremely

diverse and so are the technologies underpinning

them. Nobody wants to be locked into a network

solution that leaves them at dead end – stifling

innovation and growth.

You should therefore be looking to utilize simple,

open building blocks so that you can start and

move in any direction you want. Your vision, therefore,

needs to be rooted in three basic principles:

1) Scale the infrastructure elastically

2) Automate to remove operational complexity

3) Create innovative, value-added services.

While easy to articulate, these principles are harder

to deliver. They require engineering innovation,

commitment at different layers of the organization

and a trusted ecosystem of technology partners.

Only then can you build a data center solution that

enables your business to instantly evolve to meet

customer expectations again and again.

Scale You need your entire network to scale up, scale

out, and sometimes even scale down on demand.

This requires pioneering innovation for scale that

fundamentally starts with high-performance

silicon, extends into high-performance systems

and – ultimately – leads to high-performance

network-wide architectures.

Automate

Networks must be efficient and simple to

operate. Operational complexity plagues all

data center operators and slows any material

reduction in cost across the network. Virtwual

innovations bring SDN intelligence to complement

physical strength and deliver network-wide

optimization. What was once manually provisioned

is now automated, enterprises can eliminate

unforeseen errors and emergencies, drastically

increase network utilization and optimize the

network across layers to bring down costs.

Create A converged architecture enables enterprises

to create virtualized services anywhere in the

network by leveraging physical innovations to

match traffic demands and virtual innovations

to precisely control traffic network-wide,

without sacrificing the customer experience.

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Copyright © August 2015, Juniper Networks, Inc. All rights reserved. Juniper Networks, the Juniper Networks logo, Junos and QFabric are registered trademarks of Juniper Networks, Inc. in the United States and other countries. All other trademarks, service marks, registered marks, or registered service marks are the property of their respective owners. Juniper Networks assumes no responsibility for any inaccuracies in this document. This document is provided for information purposes only, and Juniper Networks reserves the right to change, modify, transfer or otherwise revise the contents hereof at any time without notice. This document is not warranted to be error-free, nor subject to any other warranties or conditions, whether expressed orally or implied in law, including implied warranties and conditions of merchantability or fitness for a particular purpose. Juniper Networks specifically disclaims any liability with respect to this document, and no contractual obligations are formed either directly or indirectly by this document. This document may not be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without our prior written permission.

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