Posts Tagged ‘networking’

Huawei unveils viewpoints on wireless attention trends in 2013

Tuesday, January 1st, 2013

Telecom Lead India: Chinese wireless apparatus builder Huawei has common viewpoints on attention trends in 2013.


The story of tellurian amicable expansion is, to some extent, a story of tellurian systematic and technological progress. Humanity achieves systematic and technological swell by pulling a earthy and mental boundary and violation divided from a restrictions of time and space. This has been loyal in times both ancient and modern. Our ancestors built guide towers and invented a wheel, while we have whole Internet tie and vehicles means of reaching outdoor space. In a march of a systematic and technological development, dual epoch-making inventions have been the steam engine and a computer. The steam engine ushered in a industrial age by providing distant some-more energy than what primer labor and beasts of weight could generate. The mechanism brought us into a information age by information estimate capabilities that distant outperform a tellurian brain.

The past century has witnessed several waves of swell done probable by information technologies, including those used for communications (telegraphy, telephony, and broadcasting), home party (radio, TV), computing, and a Internet. Information technologies expostulate mercantile expansion worldwide and reshape a approach people live and work. At present, we are elaborating from a “society on wheels” to a “society on a network.” However, information systems are still regarded as assist collection and support systems, gripping a digital and earthy worlds rather together and compartmentalized. Now, as a digital and earthy worlds start to merge, a expansion of a Internet of Things has proven to be an effective matter of information-based developments and is certain to move groundbreaking changes to all of humanity.

Beyond information and communications, a augmenting formation of a digital and earthy worlds will lead to a new digital revolution.

British philosopher Karl R. Popper divides tellurian multitude into 3 parts: a earthy world, a mental/psychological world, and a universe of products of a tellurian mind (also famous as a universe of pattern knowledge). In a future, a earthy universe will be married with a digital universe to form a new world. This formation will move extensive changes to a approach we live and work, a approach businesses operate, and a approach multitude functions — a new age of digital citizens, digital enterprises, and digital society.

Heavy faith on networks will chaperon in an age of digital citizenry.

Nowadays, a ways in that people communicate, acquire information, study, have fun, shop, make friends, and pair-bond are utterly opposite from what we saw usually dual decades ago. People not usually have some-more means to stay connected and obtain information, though have exceeded a constraints of their earthy plcae or time zone. With a developments in this brief time span, rather than watchful days or even months for letters to arrive, people now contact others in genuine time around email, benefaction messaging, and amicable networking. Likewise, people can review a news online anytime, anywhere, rather than sticking to their TVs or radios. Wikipedia and other interactive platforms concede people to simply find answers to their questions, though carrying to wade by saturated encyclopedias or wait for bureau hour-working librarians. Internet users exceeded 2.4 billion in 2012, over 34% of a world’s population, with this figure flourishing roughly 8% any year. There are also as many as 1.1 billion smartphone subscribers right now, an boost of 42% over 2011. However, this is usually a beginning. As digital lifestyles are adopted, digital citizenry will figure a behaviors of next-gen consumers, changing a approach people live, and jolt adult large industries. For example, normal video sales and let stores are disappearing, and a 244-year aged Encyclopedia Britannica is no longer printed. It is really approaching that in a subsequent few decades, children will ask because a word journal contains a word paper in many a same approach as a children currently ask because a media is still referred to as a press.

The age of digital business is sketch near, as seen by a blurb coherence on networks for prolongation and operations.

Network developments have poignant change on business activities. Which business currently can even continue to work if a network fails? E-commerce is sepulchral and fluctuating a strech into any consumer shopping decision, either involving digital calm (e-books and digital music), cars, or home appliances, or even tiny equipment like snacks and slippers. In 2012 alone, electronic sell sales worldwide totaled US$1.1 trillion. Information technologies will be offer practical to craving prolongation and operations. Rather than being collection or support components, ICT will turn constituent to production, decision-making, patron attribute management, use provisioning, marketing, and logistics. ICT will be employed in a building of end-to-end systems that work in genuine time, personification a purpose in any and any link, from thought era to product conceptualization to pointing selling to fit operations to on-time delivery. In other words, digitization will turn a pivotal evil of a destiny enterprise.

A borderless Internet gives arise to a digital society.

Thanks to a boundary-free inlet of a Internet, a immeasurable series of borderless practical communities and societies have come into being. A engorgement of these communities will mix to form a digital multitude that transcends borders, cultures, and races. Facebook is home to over one billion users (or netizens), origination it a third largest “citizenry” in a world. This form of digital society, that mirrors while fluctuating over a earthy world, will positively impact many aspects of amicable administration and transformation, including politics, economy, law, culture, news media, security, and ethics, among others.

As a communications apparatus and support system, information technologies have significantly altered a approach in that people live and work over a past few decades. They also parent new economies and industries while reshuffling normal ones. No doubt, a augmenting formation of a earthy and digital worlds will have a some-more extensive impact on society. Such formation will approach ICT expansion in a approach that can improved offer society.

Smart infrastructure presents opportunities for offer ICT development.

Technologically-speaking, ICT innovations especially tumble into 5 groups: mobility, broadband interconnectivity, amicable networking, cloud computing, and large information processing. The pattern of these innovations is to renovate a earthy universe into a intelligent universe underpinned by intelligent ICT infrastructure, origination a latter pivotal to advancing information-based development.

From large information to “big” wisdom, a IT systems of carriers and enterprises are elaborating from post-processing support systems to real-time business systems.

This transition outlines a elemental change in how IT functions. We are vital in what might be a “big bang” of information. In 2012, adult to 2.4 zettabytes of information (that’s 2.4 billion terabytes) was generated globally; it would take as many as 3 trillion DVDs to store all this data. By 2020, a volume of information generated is approaching to grow fourteen-fold. This information will have dual vital sources. The initial is from a outrageous volume of exchange between enterprises and between enterprises and consumers. The second is from large interactions on a Internet, amicable networks, craving use networks, and a Internet of Things. Social networking will be quite pervasive; it will be emblematic of all applications, not usually for amicable networking utilities like Facebook. Typically, large information has 4 characteristics: variety, volume, velocity, and value. Velocity and value are many important. By mixing a methodical capabilities of a tellurian mind to settle behavioral patterns and a information estimate capabilities of computers, we can fast investigate large information and precedence digital resources to arise profitable diagrams that uncover relationships, intentions, expenditure patterns, interests, and mobility. From large information to “big” wisdom, IT systems will be means of bargain not usually a benefaction preferences of business though also their destiny tendencies. This will make amicable administration, corporate decision-making, and particular lifestyles smarter and some-more logical. Therefore, IT systems for both enterprises and carriers shall no longer duty as post-processing support systems. Rather, they will turn real-time business systems that promote business operations, a transition that outlines a elemental change in IT.

As normal IT craving pattern is no longer means of estimate a outrageous volumes of information being encountered, an Internet-oriented cloud computing pattern is needed. The rebuilding of information centers will infer a basement of ancillary large data.

Over a past dual decades, many enterprises have practical client-server pattern for their IT. Although these systems were constantly upgraded, their technical pattern was not, origination any ascent repeated and not transformative. With client-server, a server essentially stores tiny volumes of craving transaction data, withdrawal many information sparse opposite worker PCs (clients). As Internet technologies have continued to develop, information has begun a emigration from a PC to a cloud, causing a pointy spike in information volume for a latter. The need to store such immeasurable volumes is accurately what is pushing innovations in computing and storage architectures, and giving arise to a presentation of cloud computing architectures that underline virtualization, together computing, distributed storage, and automation, origination for a thespian change over a normal architectures. In fact, this new pull is deliberate a third vital call of IT mutation after those associated to a mainframe and client/server architecture. Presently, normal craving IT architectures are no longer means of estimate a saturated amounts of information that they take in. To answer this need, an Internet-oriented cloud computing pattern is required. This pattern will form a basement of both large information and “big” wisdom.

Low-bandwidth networks are opposition information-based expansion and user knowledge improvement. A whole Gigabit network is a exigency for any digital society.

To lay a substructure for a Terabit-network society, next-gen investigate is needed. As open and private clouds develop, a volume of information they lift is certain to mushroom, as a investigate of information is some-more effective when a storage is centralized. To expostulate this migration, whole networking with larger bandwidth is compulsory to support information upload and information usage. Ubiquitous broadband creates cloud computing accessible. Devices opposite a whole attention chain, including calm origination inclination (video cameras), cloud computing inclination that routine information, and terminals where information is generated and consumed (PCs, tablets, etc.) all now support high-definition video, even smartphones that cost usually US$150. However, a tellurian network, that has an normal bandwidth of usually 3.1Mbps, is still incompetent to support high-definition video, heading to a aforementioned hindrances to user experience. Therefore, we contingency accelerate a construction of Gigabit networks to capacitate seamless ultra-broadband access, a basement for building a digital society. We contingency also feature a investigate into and origination efforts for technologies such as next-generation mobile access, next-generation digital subscriber line (DSL) access, pacifist visual network (PON) access, next-generation Internet, and all-optical networking (AON). This concentration on destiny networks will lay a plain substructure for building a Terabit-network society.

To support expansion from a “hard” siren to a “soft” pipe, we should arise programmable, scalable, application-agile, automatic, and open intelligent networks.Software-defined networking (SDN) will lead to a expansion of next-gen network architectures.

Technologies are enablers of network development. In a past dual decades, driven by advancements of technologies from time-division multiplexing (TDM) towards all-IP, networks have undergone 3 opposite revolutions: analog to digital, bound to mobile, and narrowband to broadband. At present, All-IP networks are certainly a buttress for telco and craving networks. However, as networks grow, with information issuing in and out in capricious directions and technologies being upgraded rapidly, it is critical that networks be flexible, intelligent, scalable, and automated. Equally critical is a change in how we consider about network architectural design. The core concepts for cloud computing development, such as virtualization, program decoupling from hardware, centralized apparatus pool scheduling, involuntary deployment, high scalability, and on-demand use provisioning, yield profitable references for network development. Introduction of these concepts into a pattern of network architectures and products can form a concepts of SDN, including forwarding and control component subdivision (FORces) to centralize network control and apparatus scheduling, program decoupling from hardware to virtualize network functions, network duty expansion of cloud-based pattern to comprehend involuntary deployment and high scalability, and application-aware network expansion to urge network capabilities, among others. By adopting these concepts, we can lead a developments of next-generation product architectures and network architectures, settle an intelligent application-aware network that can cleverly report traffic, urge user knowledge and network utilization, support traffic-based operations, and beget new income streams.

Intelligent terminals will not usually be collection for communications; they will turn extensions of a possess senses. Terminals of a destiny will be context-aware and have intelligent feeling capabilities.

What creates a depot intelligent is distant some-more than usually a CPUs and handling complement – It also relates to a feeling capabilities. By regulating several sensors (compasses, accelerators, gyroscopes, barometers, tellurian positioning systems, light sensors, microphones, cameras, hold screens, heat sensors, and infrared instruments), we can extend a tellurian feeling and shaken systems in a form of intelligent terminals, bringing us one-step divided from loyal brain-machine interaction. These intelligent terminals will be context-aware, and means to both clarity and envision function by facilities such as auto-completion. By mixing cloud-based large information investigate capabilities with context-aware terminals, we can yield personalized and intelligent services that comprehend loyal human-machine interaction, enabling a thespian alleviation in a user experience.

To respond to a ICT mutation being driven by a formation of a earthy universe and digital worlds, Huawei has grown a siren plan that covers cloud-based information core infrastructure (used for information storage and processing), infrastructure networks (used for information smoothness and delivery), and intelligent terminals (used for information origination and consumption). Huawei has also set adult a 2012 Laboratories, dedicated to researching next-generation technologies, while building a SoftCOM (Software Defined Network + teleCOM) network pattern expansion strategy. Huawei will plainly partner with attention peers to lift a information multitude to a new level.


Article source:

Quantum techniques to urge broadband and encryption are closer to market

Friday, December 28th, 2012

Editor/Authors are :
Brian Wang, Director of Research.
Sander Olson, Interviews and other articles
Phil Wolff, Communications and amicable technologist.
Alvin Wang. Computer, technology, amicable networking, and amicable media expert.

Contact: blwang during gmail dot com

© Copyright all rights indifferent by Nextbigfuture and Z1 Consulting Inc 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012

Article source:

SDN Momentum Continues For Data Centres, IDC Reveals

Thursday, December 20th, 2012

Software-defined networking (SDN) is carrying an augmenting impact in a networking industry, as craving seductiveness grows and vendors continue to pull out solutions.

So contend a analysts during marketplace investigate organisation IDC in a 19 Dec report.

Growing Sector

IDC analysts pronounced SDN revenues driven by sales to enterprises and cloud use providers will strike $360 million (£221m) in 2013, and will grow to $3.7 billion (£2.3bn) by 2016. Those numbers includes sales of all SDN-related, from a compared network infrastructure and applications to control craft solutions and veteran services.

The foresee comes after a year that saw determined networking vendors like Cisco Systems, Hewlett-Packard, Juniper Networks and Extreme Networks start to welcome a SDN trend, and a horde of startups move their solutions to market. At a same time, there has been some converging in a attention as incomparable players – including some with small or no participation in a information centre networking space – have bought smaller vendors to enlarge their SDN capabilities. Those embody Big Switch Networks, Adara and Pica8.

For example, VMware this summer spent $1.26 billion (£775m) for SDN startup Nicira, and a week later, Oracle bought Xsigo. In November, Brocade bolstered a SDN imagination by appropriation SDN startup Vyatta.

The pull of software-defined networking and virtualised networks is understandable. The information centre – quite servers and storage inclination – has turn some-more virtualised over a past several years, creation a infrastructure some-more energetic and flexible, easier to module and scale, and some-more cost-effective. However, within a information centre, networks have turn a bottleneck – while it can take mins to spin out a practical machine, it can take weeks to configure a normal network to hoop those VMs.

The guarantee of SDNs is easier and faster programming, larger scalability, easier government and larger cost efficiencies, according to Rohit Mehra, clamp boss of network infrastructure during IDC.

“SDN’s ability to decouple network proof and policies from a underlying network apparatus allows for a some-more programmable network,” Mehra pronounced in a statement. “Providing improved fixing with a underlying applications, this programmability allows for larger levels of flexibility, innovation, and control in a network. Logic and policies that can be defined, altered and mutated outcome in a some-more energetic network, providing a scale network administrators so desperately crave.”

Transformative Trend

A series of trends in a information centre are assisting expostulate a direct for SDNs, according to IDC analysts. Among those trends are a arise of cloud services and applications, a flourishing seductiveness among enterprises and use providers in converged infrastructures – such as Cisco’s Unified Computing System (UCS), that offers a firmly integrated resolution that includes servers, storage and network technologies – and a software-defined information centre, and a advantages subsequent from server virtualisation.

In addition, organisations are flourishing increasingly undone with normal networks and their inability to support virtualisation, cloud computing and mobility, according to IDC analysts.

They also pronounced that 2013 could be a year of event for many of a smaller SDN startups, some of that have only recently come out of secrecy mode, while there are still some that have nonetheless to do so. IDC pulled out 5 startups that a analysts advise could make poignant strides in a new year.

At a tip of a list is Big Switch Networks, a 2-year-old association that in Nov rolled out a initial apartment of SDN-based products – dubbed Open SDN – and a list of partners that includes Dell, Extreme, Juniper, Microsoft, Palo Alto Networks, Broadcom, Brocade and Citrix Systems.

“SDN is a many disruptive and transformative trend to strike a networking attention in over 20 years and Big Switch Networks Open SDN product apartment delivers on a guarantee of a full intensity that we envisioned when we started this company,” Big Switch co-founder and CEO Guido Appenzeller pronounced in a matter during a time a association announced Open SDN.

Are we a cloud computing whiz? Try the quiz!

Article source:

The purpose of software-defined networks in cloud computing

Saturday, December 15th, 2012

It might seem ironic, yet a many formidable thing about software-defined networking is actually
defining it. Given a agility of views about what a software-defined network is, it’s hardly
surprising that SDN’s specific purpose in a cloud is elusive.

There are dual software-defined

models and dual opposite SDN missions in cloud computing. Since networks
create a cloud
, handling a interplay between these dual factors could be a pivotal to cloud
and success.

As an information service, a Internet treats a network as a pure partner. With the
cloud, a user’s applications reside in, and turn partial of, a cloud. And many determine that means at
least some of a network contingency be integrated with a cloud. The stream accord is that a data
center has to be done cloud-specific, yet should the WAN also be a “resource” to
the cloud?

To answer that, let’s initial demeanour during given SDN contingency embody a information center.

In cloud computing, a user joins a village a cloud creates. Cloud computing service
providers face a issue of
during a network turn as many as they do during a CPU/server and database levels.
Shared resources contingency be common in such a proceed that one user’s applications do not impact another
user’s apps. Therefore, a resources of all users have to be partitioned so they are private and
secure. While network technologies such as IP and Ethernet any have virtual
network capability, these capabilities are singular in terms of how many tenants can be supported
and singular how removed any reside is.

Cloud program providers see a network as a partnership between a information core network and
the cloud. Amazon Web Services’ Elastic IP addresses an application-driven proceed to integrating
the network and a cloud; OpenStack
includes network services as one of a resources it virtualizes, along with storage and
CPU/server. OpenStack’s
interface defines how a practical network can be combined to “host” CPU and database
elements, for example. However, Quantum doesn’t conclude a record used to emanate that virtual
network. Each businessman is obliged for mapping a record to a practical network models that
Quantum defines.

Two SDN models for cloud computing
The need to initial accommodate multi-tenancy and support cloud control of network services second
brings us to a record side of SDNs. Two models of SDN have emerged: a “overlay model” and
the “network

In a conceal model, program (often cloud-linked software) creates a practical network; in the
network model, network inclination emanate those practical networks.

Overlay SDNs, such as VMware’s
recently acquired Nicira technology
, use program to assign IP or Ethernet addresses into
multiple practical subnetworks, identical to what TCP does with ports. A new set of
network APIs allows applications to entrance these subnetworks as yet they were IP or Ethernet
networks. The program keeps a trade of mixed subnetworks secure and isolated. Network
devices don’t “see” overlay
virtual networks
, so they don’t provide trade differently.

Network-hosted SDNs are built from network devices; therefore, they conduct SDN trade directly.
Some network vendors — Cisco in sold — introduce to supplement program control to stream devices
and networks by bettering stream network record and inclination that heed to SDN principles,
creating a “evolutionary SDN.”

Others network vendors, including many SDN startups, introduce to develop network inclination to a
simpler form, stealing routing comprehension and path/traffic government that are in inclination and
centralized in cloud-hosted software.

But both a conceal and network models and missions hit in a WAN. If cloud virtual
networks have to extend over information centers in a cloud and external to a user, afterwards it’s
difficult to see how network-hosted SDN implementations of virtualization could be avoided, for
three reasons:

  1. Overlay SDNs rest on a program component to emanate a practical networks. It’s harder to safeguard a
    user has a compulsory program to participate. 
  2. Network appliances with program that can’t be simply updated can't use conceal virtualization
    at all.
  3. WAN quality
    of service
    (QoS) can’t be positive with an conceal SDN given a SDN can’t conduct traffic
    handling. A network-hosted SDN can offer accurately a same interfaces and services to users as it
    did before, requiring no changes to program or devices. It could also conduct trade and insure
    QoS. Therefore, end-to-end SDN missions preference an SDN indication that is implemented in a network –
    not over it.

SDN is increasingly supposed as a trail to “cloud
,” definition a mutation of networks and services to support a use of cloud
computing on a large scale. Navigating a several missions and record models of SDNs is
critical to scrupulously position cloud services and comprehend advantages of cloud computing. For cloud
users, meaningful their cloud providers’ SDN plans, as good as a skeleton of private cloud software
stack vendors, is a many vicious component in assessing these providers’ long-term value.

About a author
Tom Nolle is boss of CIMI Corp., a vital consulting organisation specializing in
telecommunications and information communications given 1982.

This was initial published in Dec 2012

Article source:

Centre to emanate advisory to check injustice of IT Act provision

Saturday, December 15th, 2012

Against a backdrop of some arrests on posting on amicable networking sites, Telecom and IT Minister Kapil Sibal on Friday pronounced a sustenance in a Information Technology Act has been dissipated in some states and a Centre will shortly emanate an advisory to check it.

“As per a assessment, there has been injustice (of Section 66A of IT Act) in some states…It is my personal opinion and also of Central Government that it (misuse) is not right.

Hopefully, we will emanate an advisory during a earliest,” Mr. Sibal pronounced replying to questions in Rajya Sabha.

He, however, pronounced a injustice is not rampant.

Mr. Sibal was responding to questions on either Section 66A is disposed to injustice by law coercion agencies and what stairs a supervision is holding to rectify it to check a misuse.

There has been conflict after dual girls were arrested in Nov over a Facebook post criticising a bandh like conditions in Mumbai after Shiv Sena supremo Bal Thackeray’s death. Another child was arrested for posting ‘vulgar’ comments opposite MNS arch Raj Thackeray and a people of Maharashtra on a amicable networking site.

Section 66A provides for punishment adult to 3 years for promulgation around electronic mail messages that are grossly offensive, menacing, insulting, dangerous or causing inconvenience.

The apportion pronounced there was a need to teach a military and implementing agencies on a issue.

Mr. Sibal pronounced Section 66A was supposing in a Act formed on a general best practices and identical supplies in a Communications Acts of a series of countries.

The provisions, he said, are in line with a leisure of debate and countenance and citizen’s right enshrined in Articles 19 and 21 of a Constitution.

Mr. Sibal pronounced India will strengthen right of leisure of debate to a citizen with larger effect than any other country.

Mr. Sibal pronounced a supervision has hold contention with stakeholders including attention associations, intermediaries and users to residence a emanate of correct doing of a supplies of a Act.

“It has been concluded to yield required discipline to forestall perplexity of a supplies of a Act and to minimise a unintended consequences,” he said.

Article source:

Social media surveys: A apparatus for improved requirements?

Friday, December 14th, 2012

How can amicable media surveys — and amicable networking collection — urge a requirements
definition process?

Social media is changing a landscape of how we go about doing a work (as good as vital our
lives). But how can a business researcher or product manager practically urge a peculiarity of the
requirements they emanate by amicable media surveys and amicable networking tools?

Social media creates it easier to have some-more conversations, though with
less engagement. Surveys work a same way.

I’ve successfully been means to use my social
in 4 unsentimental ways to urge a peculiarity of requirements. we wish these examples
help we to do a same.

  1. Learning a craft. By joining with experts in a craft, other product managers and
    business analysts, we am unprotected to some-more opportunities to learn how to do my work improved — both by
    reading what these experts share and by combining relations with them that give me an opportunity
    to learn directly from them.
  2. Learning a domain. Finding experts is something that accelerates training for me in whatever
    particular domain I’m operative during a moment. By listening to what they say, and listening to whom
    they listen, we can ramp adult faster — by study a core aspects of a domain, a pivotal insights
    these experts have developed, and a trends and events that they see as carrying a many influence
    on changing a domain.
  3. Understanding a sold problem. The best practice
    for building surveys
    is to start by carrying sincerely deep, semi-directed conversations with
    people who paint a forms of people we would be surveying. Start with an sensitive opinion
    about what we consider we need to discover, and try those areas to rise a abounding understanding
    of a space. This helps we learn improved questions to ask — those some-more expected to produce useful
    insights. By enchanting some people by amicable media primarily and afterwards enchanting them deeply
    (through normal means) and individually, we can rise improved questions.
  4. Surveying broadly. Social media creates it easier to have some-more conversations, though with less
    engagement. Surveys work a same way; we get specific information, with singular or unknown
    context. After improving a peculiarity of questions we wish to ask in a survey, amicable media now
    gains we entrance to statistically poignant groups of people who have responded to surveys, both
    validating and refuting hypotheses that we have shaped before enchanting them.

All of these tips assume we already have a amicable network in place. we adore a phrase, dig
your good before we are thirsty
, and that relates here as well. As a consultant, we am
regularly changing domains, so my good is deepest in the craft, that relates across
domains. When we enter new domains, we start digging new wells — for when we know I’ll be parched in
the future.

You have to deposit in your network before we can design to comprehend advantages from it.

This was initial published in Dec 2012

Article source:

Why Nicira deserted OpenFlow hardware control

Friday, December 14th, 2012

When Nicira owner Martin Casado was posterior his doctorate in mechanism scholarship during Stanford
five years ago, he set out to renovate a operational indication of networking so it could keep pace
with a automation that server virtualization brought to a information center.

Casado suspicion his invention, OpenFlow, would solve that problem by
itself, though now he says he was wrong. OpenFlow hardware control — now all a fury in the
networking attention — isn’t a answer. He motionless to take a opposite proceed in overlay
software for network virtualization, and VMware suspicion so rarely of that plan that it spent
$1.2 billion to acquire Nicira

“The problem is, we indeed got it wrong, and we consider a lot of a attention hasn’t satisfied how
wrong it was,” Casado pronounced during a whiteboard event he hosted this week with several journalists
in VMware’s Cambridge, Mass., office.

created OpenFlow as a means of decoupling a control craft and information craft in network hardware and
centralizing control in a executive “brain” — a OpenFlow controller. This creation would enable
programmability and totally renovate network operations. “This was my subject during Stanford –
that this is a proceed to automate networking,” he said. “So, a initial 3 engineers during Nicira
wrote this custom … and we did a lot of a early work in bargain a stipulations of SDN
[software tangible networking].”

OpenFlow still creates clarity in many use cases, quite for trade engineering, Casado said.
Google’s information core interconnect deployment is a ideal example. But when it comes to network
virtualization in a information center, OpenFlow for control of hardware forwarding is a wrong proceed to
go, he said.

Virtual switches instead of OpenFlow hardware

“Within a initial year, we satisfied that something unequivocally critical was happening,” Casado said.
Server virtualization had remade a network entrance covering in information centers. The virtual
switches embedded in hypervisors, quite VMware’s vSwitch, had turn a new network edge.
If a new corner was in module on a servers, given worry regulating OpenFlow to control physical
switches? A practical switch is ideal for information core network virtualization, for dual reasons.
“First, it runs on x86, and x86 is super-flexible. We know how to module it. It’s not like you’re
chiseling some algorithm in some exclusive ASIC. If we wish to change how we do forwarding, we just
write a new program.

“Second, it’s tighten to a edge. Networking has a long, contemptible story of perplexing to theory what’s
happening on machines. If you’re there [on a server], we get entrance to these abounding semantics in
the corner that you’ve never had before. What addresses are being listened to? What users are
connecting to a machines? The turn of prominence we have is like a networking [professional's]

These realizations caused Casado and his group to re-evaluate and take a opposite approach. “We
had this aha moment,” he said.

Nicira would use OpenFlow for network virtualization, though it would change a concentration from hardware
to module control. It would control practical switches. To Casado, this finished ideal sense. After
all, parcel forwarding is not a problem in today’s networks. Legacy networking is still extremely
good during relocating packets to a right destinations. It’s all a process and operational layers on top
of normal networking that means problems and delayed down operations. Specifically, the
implementation of entrance control lists (ACLs), VLANs, network isolation, billing and accounting
were once functions that networking professionals were means to set and forget in a static
environment. When server virtualization accelerated a provisioning of new discriminate workloads and
enabled practical appurtenance mobility, unexpected primer processes became unwieldy.

Casado figured these operational headaches didn’t need to take place on a earthy network
hardware, though could instead be changed to practical switches that could simply be tranquil in
software. That’s how Nicira’s
Virtualization Platform
was born, and that’s given practical network overlays have turn such a
hot subject alongside SDN.

The problem with approach control of OpenFlow hardware

Still, many vendors and network practitioners are meddlesome in implementing OpenFlow hardware
to capacitate network virtualization in a information center. But there are a integrate reasons given it won’t
work, Casado said. The initial barrier is a network businessman ecosystem. “You’re seeking switch
vendors to put OpenFlow in their switches, and there is not an huge volume of inducement for
them to do that, given in some proceed you’re divesting them of value,” he said. “I wrote a first
OpenFlow protocols in 2007, and given afterwards people have announced stuff, though we usually have a couple
of useful OpenFlow switches. Anyone who has a useful OpenFlow switch also
has a controller
, and I’m certain they use their controller and their switches in a proceed that
binds them together so they can say control [over a customer's environment.] As distant as
creating an active village here, it’s usually too formidable given of business relationships.”

Plenty of network vendors have enabled OpenFlow on their switches, so what does Casado meant by
OpenFlow switches
“? Most vendors have not built switches with adequate general-purpose forwarding
table ability to be truly useful in a information center, he explained. In a customary switch ASIC [application-specific
integrated circuit], there is an ACL table, a Layer 2 table, a Layer 3 table, “all these
special-purpose tables,” he said. None of those tables can hoop information center-class OpenFlow.

“OpenFlow says a universe should like this: You have this list that has an 11-tuple look-up,
which is this super-general thing, and we have a whole garland of them,” Casado said. “In sequence to
get a OpenFlow checkbox, a lot of vendors will simply overkill one of these tables, that will
have maybe 5,000 entries. And they try to shoehorn OpenFlow there. These chips were indeed not
made to do that. OpenFlow is still perplexing to adjust to this, though it’s going to be a unequivocally difficult

The upsurge forwarding tables accessible on many OpenFlow switches currently are excellent for investigate and
experimentation, Casado said. They work for trade engineering, too. “But a volume of flows and
traffic that happens in a information core means that we have to do something like Layer 3,” he said.
“OpenFlow will not work for building a forwarding fabric for switches in a information center.”

Is there room for OpenFlow hardware in a Nicira-VMware solution?

Does this meant that Nicira
and a primogenitor VMware
are calm to concentration usually on software? Casado says there are three
areas where his record will need to interface with hardware, and this will need something
other than customary OpenFlow. “The initial one is QoS [quality of service],” he said. “More queues is
better. The some-more we have in hardware, a some-more layers of QoS we can yield to customers. If I
have 8 queues, we can usually yield 8 SLAs [service-level agreements]. If we have a million
queues, we can do an SLA per tenant.”

QoS and identical hardware-based facilities will need a easier indication for Ethernet Operations,
Administration and Management, or OAM, so that Nicira and other technologies can troubleshoot and
debug these capabilities opposite both earthy and practical workloads.

Network virtualization record will also need to interface with top-of-rack switches for
legacy workloads that have not been virtualized. “You need to control a top-of-rack in sequence to
get those earthy workloads incorporated into practical networks and that requires an OpenFlow-like
interface,” Casado said.

Finally, network virtualization controllers need to interface with network appliances
(firewalls, focus smoothness controllers, and so forth), and a “OpenFlow-like” interface will
be indispensable there as well.

“I consider OpenFlow is too low-level for this,” Casado said. “So, we’ve been proposing a new one:
OVSdb-config. It’s what we use to
manage a Open vSwitch along with OpenFlow. It allows us to conduct higher-level state. That’s what
we’re anticipating people will use for these things, though it doesn’t unequivocally matter.”

Why doesn’t it matter? Any custom will do, as prolonged as it’s open, encourages innovation, and
gets a pursuit done, Casado says.

Let us know what we consider about a story; email Shamus McGillicuddy, News

Article source:

It’ll take a channel to expostulate SDN sales

Friday, December 14th, 2012

The channel is vicious to software-defined
sales in a enterprise.

While approach SDN sales to vast cloud hosting providers, financial institutions and other
leading corner enterprises is a initial step in software-defined networking (SDN) adoption, large
players paint usually 20% of a sum intensity marketplace audience. To strech a other 80%, vendors
will have to capacitate their channel partners to sell SDN to small, mid-sized and even some-more typical
large craving organizations.

Read some-more about SDN sales and technology

Adara launches one of a initial SDN
channel programs

Big Switch Networks: Network
virtualization, SDN and an army of partners

In software-defined networking, applications
define a network

already guarantee estimable advantages to a craving information core network,
enabling a network to adjust dynamically, and permitting for provisioning of network services (Layer
2-7) for new server workloads.

Beyond that, SDN technologies will capacitate IT to “tune” many tools of a network to specific
applications in businesses of all sizes. This creates a intensity for a vast ecosystem of SDN
, including those that urge network government and revoke network operational

It is these applications and their concomitant services that will many advantage channel
partners. The craving SDN marketplace for program and hardware will strech $1.6B by 2017, according
to Doyle Research. The network channel
has prolonged been challenged by a marketplace in that they contingency sell boxes (typically Cisco) during a lowest
possible price. But SDN technologies pierce divided from this hardware-centric indication and offer channel
partners a approach to assistance their business update and balance their networks to specific application
requirements, ensuing in softened focus opening and optimized networks.

With SDN, channel partners can sell a following value-adds:

  • Network upgrades and emigration for SDN: Channel partners can even assistance business with
    extensive earthy hardware quit to SDN but rip-and-replace by regulating conceal networks.
  • Layer 4-7 services including software-based WAN optimization
    and network security:
    Quite a few SDN
    Layer 4-7 apps
    already exist on a market. These services will be reduction costly to buy than
    their hardware counterparts and can revoke OPEX around centralized government features.
  • Professional services: Partners will act as an persisting consultant in a formulation of a
    more stretchable network with reduced patron OPEX regulating SDN technologies.

Creating an army that can hoop SDN sales

The SDN marketplace is hobbled by a blank of folks that know and can exercise a technology,
but a channel can change that.

Read some-more Fast Packet bloggers

Blogger Keith Townsend says resisting
network virtualization
is like holding on to Token Ring.

has an SDN story
… or do they? Editor Rivka Gewirtz Little is sleepy of a SDN-washing.

The guarantee of SDN requires vast numbers of lerned engineers who can quit networks to SDN,
manage these networks and rise singular SDN applications. Technology providers will need to spend
the time and income to sight their channel partners to know a value of SDN and how to
implement it. But channel partners are accustomed to holding on this kind of training. They’ve done
it with information core network fabrics and other slicing corner technologies. Once trained, a channel
can yield a “feet on a street” required to exercise new SDN technologies.

This won’t be a brief process, so initial efforts to sell SDN to heading corner record users
in cloud hosting and financial services will continue during 2013. But in sequence for extended scale
adoption, a channel contingency be intent to keep approaching expansion stability for 2014 and beyond.

About a author
Lee Doyle is Principal Analyst during Doyle Research. Doyle Research provides targeted analysis
on a Evolution of Intelligent Networks: SDN, OPEX, and COTS. Lee Doyle has over 28 years
experience examining a IT, network, and telecom markets. For some-more information greatfully see his
website during and email him at

Article source:

Software-defined networking could drastically change today’s network infrastructure

Thursday, December 13th, 2012

Software-defined networking is all a fury these days, though is it right for your data

SDN gibberish is clearly everywhere, charity a guarantee of a practical network infrastructure
that can be provisioned as simply as sourroundings adult a new practical server. But real-world SDNs are hard
to find outward of a few marquee business who have dedicated lots of operational resources to set
them adult and control them. Let’s demeanour during their history, where things mount today, some of a bigger
obstacles to SDNs and how we can start to devise for them in your possess environment.

SDN 101


SDN isn’t a new thought by any stretch. SDN is a form of network virtualization, and indeed, we
have had several forms of network virtualization for some-more than a decade.

However, SDN is graphic from networking virtualization, and clamp versa, wrote Martin Casado,
CTO and Bruce Davie, arch use provider architect, both of Nicira Networks.

“It is quite probable to have [a] network virtualization resolution that doesn’t
use SDN, and to use SDN to build a network that has no virtualized properties,” they blogged this spring. Nicira
was acquired by VMware in July.

Source: Open Networking Summit blog

A good operative clarification of SDN is that it’s a subdivision of a information and control functions
of today’s routers and other Layer 2 networking infrastructure, with a well-defined programming
interface between a two. In contrast, many of today’s routers and other networking rigging brew the
two functions, creation it tough to adjust network infrastructure as we supplement tens or hundreds of
virtual machines (VMs) to a craving information centers. 

Separating a information and control planes has large implications for network design, wrote
John Strassner, Group CTO for a Software Labs of Huawei’s American Research Center, on a SDN
Central blog. When control craft and information craft functions can be on opposite hardware, “this in
turn enables both to compare a doing mandate to a best mixed of hardware
and program available,” wrote Strassner. “This would capacitate pools of resources to offer different
types of controllers and forwarding elements—some smarter, some dumber, some elementary building blocks
in sequence for intelligent designers to build their own, application-specific controllers.”

How SDN Helps


Done right, SDN can residence several common hurdles of difficult information core networks. One is
that as practical servers proliferate, provisioning a rest of a network infrastructure—such as
connections, routers, firewalls and a like—still takes a prolonged time.

“People have lost that it used to take dual months to sustenance a server, and now it takes
less than dual hours or even minutes. But it still takes dual weeks to sustenance a network, and that
isn’t tolerable,” pronounced Joe Skorupa, a Gartner analyst.

Network scalability isn’t gripping adult with a storage and computing counterparts. One solution
used to be sourroundings adult practical LANs to hoop a practical server collections. “That was a good first
step, though no longer,” pronounced Eric Hanselman, an researcher with a 451 Group. “Network utilization
levels have turn a stumbling retard now in information centers.” That’s since VLAN connectors are
complex and don’t scale easily.

“Most people can’t keep adult with a networking changes indispensable when they supplement lots of VMs,” said
Hanselman. “Getting network automation to work during a same scale as exists in discriminate and storage
has been a challenge.”

“The problem is that today’s networks are bigger and flourishing faster and [are] harder to manage,”
says Dennis Brouwer, senior clamp boss for network products and offered for the
enterprise markets organisation during CenturyLink, a managed IT infrastructure provider with thousands of VMs
around a universe opposite mixed information centers. The organisation is now evaluating SDN for use in both
its WAN and inside a information centers.

The second associated emanate is how to benefit programmatic control over how these networks are set up
and ripped down as a array of VMs waxes and wanes. SDN record could capacitate that by providing
APIs so that programs can control a underlying network infrastructure. SDN competence also pave a way
for enterprises to adopt hybrid clouds, providing government and confidence while organizations mix
on-premise information centers with third-party providers and partner networks.

Inventing and Standardizing SDN

The origins of a difficult SDN came about by a array of efforts centered around two
computer scholarship professors, Nick McKeown during Stanford and Berkeley’s Scott Shenker, along with
several grad students, including Nicira’s Casado. The devise was called Ethane and began some-more than 15 years ago to try to
improve network confidence with a new array of flow-based protocols.

One of a initial SDN efforts was a selection of a new networking custom called OpenFlow.
Backed by Stanford and other university researchers, a custom has perceived far-reaching support from
Facebook and Google, both of that use it now to run their networks and information centers.

Google in sold uses OpenFlow to poignant effect, pronounced researcher Hanselman. “Google has
been regulating OpenFlow for a improved partial of several years on a possess operations,” he said. “They
have built their possess earthy routing infrastructure with OpenFlow…shifting a array of network
interconnects between information centers to make ability shifts as loads change during a day.”

The OpenFlow custom chronicle 1.0 was specified in Dec 2009, and versions 1.1 and 1.2 were
released in Feb 2011 and Feb 2012, respectively. Last year, a Open 


Networking Foundation (ONF) shaped and took over shortcoming for a standardization

Having ONF in this purpose is both a blessing and a intensity abuse for SDN. The upside is being
able to control open interoperability demonstrations, such as a one during Interop in May 2012.

But carrying ONF lead a OpenFlow devise brings adult bad déjà vu in some circles. In Jan 2012,
Gartner issued a report on a devise that
compared OpenFlow’s swell with that of Asynchronous Transfer Mode (ATM) in a mid-1990s.

That ATM record seemed like a intensity game-changer, charity new protocols and technology
leaders. But a associated ATM forum didn’t inspire interoperability and adoption as it was
designed to. “Entrenched vendors difficult a specifications and behind execution of the
standard for years, effectively murdering a hazard to their existent Ethernet/IP business,”
according to a Gartner report. “We pattern identical gamesmanship to be attempted within a Open
Networking Foundation. However, this time a outcome could be different.”

The reason that OpenFlow competence equivocate this predestine is that a ONF house of directors includes
network business such as a people who run a large information centers of Microsoft and Google, while
the ATM Forum’s house was mostly apparatus providers. As a Gartner news continues, a ONF
board “possess poignant in-house technical and financial resources and are aligned in their
desire to reduce their network apparatus costs.” Whether OpenFlow can broach on that promise
remains to be seen, though [the ONF is] relocating quickly.

CenturyLink’s Brouwer, for one, is wary. “The plea is that each tech businessman says they will
support a customary though they finish adult adding exclusive extensions to a standard,” he said. “Time
will tell either OpenFlow will vessel out. Lots of vendors have voiced their support and promised
future products regulating it. But we have to get it in a lab and see what a stipulations will be,”
he said.

SDN in a Wild

Whether we trust OpenFlow will attain or not, there are countless SDN
vendors offered tangible products today
—traditional infrastructure vendors and newcomers

CohesiveFT, for example, is regulating SDN in a VNS3 product to tackle a plea that
enterprises face when migrating to a cloud: handling secure connectors and gripping control
over a data.

“CohesiveFT gives us a control and confidence we need to approve with a customers’ rigorous
privacy and attention concerns,” pronounced Kevin Hurd, executive during Assimil8, a business analytics and
financial stating association that uses VNS3 to control and bond their SDNs to
customers, partners and inner information centers. “The data-in-motion encryption ensures that we
maintain rarely segmented and secure conceal networks.”

For example, Hurd pronounced Assimil8 can improved control their Internet Protocol Security tunnels and
use VNS3’s REST APIs to emanate unequivocally stretchable networks that mix firewalls, routers
and switches regulating software. The thought is to hoop not usually a company-owned network
infrastructure, though also a practical networks that are combined to bond to business and partners
outside a craving domain.

Another businessman with an early charity is Vyatta, that sells practical firewalls that use the
OpenFlow protocol. Several business have used a Vyatta firewalls to bond on-premises
Cisco-based firewalls with a Amazon cloud infrastructure, as reported by
(see figure on page TK for more).

An instance of cloud bridging, from Vyatta.)

Then there’s SDN attention heavenly Nicira, whose Network Virtualization Platform was used by
Calligo, a cloud provider located in a U.K. Channel Islands, to connect
two graphic information centers
and have them seem as one practical entity. Clearly, carrying better
ways to bond to a cloud is throwing on roughly as discerning as cloud computing itself.

SDN Faces Obstacles Galore

But don’t get too vehement about SDN usually yet. It’s still distant out on a setting for many IT
organizations.A new InformationWeek consult of 250 IT professionals showed that about 70%
of respondents won’t start contrast SDN for during slightest a year.

That is substantially since initial and foremost, this is a formidable problem with no discerning fixes.
“Making network ability accessible on direct in an focus smoothness sourroundings is several
magnitudes some-more formidable than creation discriminate or storage infrastructure accessible on demand,” wrote
Gartner analysts Gregor Petri and Akshay Sharma in another Jan 2012 report.

Second, for a near-term, it will be easier and substantially cheaper to supplement network ability than
to reconfigure networks to hoop SDN. “Just like with city formulation of commuter traffic,
adding altogether ability competence in many cases be easier and some-more cost-effective than granularly
allocating ability to specific loads,” pronounced Petri and Sharma. “But in some cases, cloud computing
needs a equivalents of highway pricing and carpool lanes to keep (enterprise) operations

Then there is a politics of it all. Cisco and Juniper could usually drag their heels, or spin SDN
as something they have always had in their product lines. “One reason that SDN isn’t being deployed
widely is since it is a large hazard to a determined box/router vendors like Cisco and Juniper,”
says Matt Wolpin, a offered communications manager of Vyatta, “and it is such a
fundamental change in networking design.”

Nicira is substantially not a genuine hazard to Cisco right now, given a latter’s distance of their market
share and a array of initiatives they have to support practical networks, including integrating
their Nexus switches with mixed hypervisors. And it could occur that OpenFlow would be subsumed
into ubiquitous network government program in a few years anyway.

Laying a Groundwork for an SDN Future

So given all a SDN hype, what should we indeed do for your possess situation? It unequivocally depends
on where we are now with virtualization and cloud deployments, and where we will be going.

You should initial demeanour during your VM portfolio and how it will enhance over a subsequent dual to three
years. If we don’t have anything in hybrid clouds or intend to bond to any of your patron or
partner networks, afterwards we are substantially protected with a standing quo.

But if we do have servers in somebody’s cloud, we should start looking during what a traditional
networking vendors can offer we in a approach of joining on-premise and cloud information centers, and
whether their betrothed upgrades can hoop a kinds of networks that we will need to service
these configurations.

Second, we should demeanour during your possess VLAN devise and see how most some-more room we will have to
scale it up. “Most enterprises have trade steering and optimization to change network priority
from overnight backup and riposte before bucket kicks adult again in a morning,” pronounced 451
Group’s Hanselman. But we could be using out of gas with that devise as a amount
of information that traverses your infrastructure puts a aria on handling your VLANs.

And finally, start meditative out of a box, suggested William Koss, clamp boss during Plexxi, an
enterprise networking startup. SDN isn’t usually about separating information from control functions. It also
means conceptualizing wholly new network infrastructures from a belligerent up.

That means starting with some large questions. “What is probable if we designed a network
differently? What is probable if we threw out dual decades of pattern assumptions and
principles? What is probable if we started with a grounds that a network can do usually one of
two functions: bond and disconnect?” Koss wrote in his blog.
SDN “is an event to ask if we threw all a crap in my network in a rabble and started over,
what would we build, how would we designer a network and how would it work?”

Clearly, some kind of SDN is here to stay and will usually boost in recognition over time. And it
may get we meditative about improved ways to build your destiny network infrastructure, too.

This was initial published in Nov 2012

Article source:

Are cloud vendors gripping adult with a need to support IPv6?

Sunday, December 9th, 2012

Outside of networking, how are a other vital cloud hardware and program vendors doing in
terms of IPv6 support?

The dependency on IPv6 is customarily not a outrageous regard for discriminate and storage resources even
though support still is needed. Vendors in this area are relocating in a right direction, though more
work is indispensable to explain full IPv6 support.

The categorical plea is with adaptation collection and solutions. There are problems in this
area regardless of a IP version, though it is easy to see how a problem is some-more strident with IPv6.
More important, adaptation vendors need to get their collection to start “thinking in IPv6.” When
this happens we will not usually get a IPv6 support we need now, though we will also get new,
innovative concepts and implementations.

This was initial published in Dec 2012

Article source: