networks

26 February

Cloud computing in 2010

The Yankee Group recently held an interesting webinar on cloud computing that looked at how the widely talked about technology will fare in 2010. It got together analyst Agatha Poon with cloud computing experts from Microsoft, Sybase and Arista to talk about a number of issues, including:

  • What is cloud: evolution or revolution? Interestingly opinion from Yankee Group's enterprise survey was split down the middle. It encouraging to see that2% of enterprises thought cloud computing was hype with no substance. The webinar participants agreed that although it is evolutionary, there are some revolutionary aspects to cloud computing;
  • What are the cloud's characteristics? It's important not to get too hung up on definitions, but Yankee define it as dynamic, shared, scalable computing resources delivered over the Internet;
  • Signposts for 2010. Cloud will make an appearance first in its private incarnation through the increase in virtualization. Also important is the development of trust between service provider and end-user;
  • Is pay-as-you-go important for enterprises? Given that enterprise budgets are not set up for PAYG, is it so important to have this - should service providers in fact be offering more traditional contracts?
  • What are the key barriers? Well they touch on the obvious ones like security and availability, but also the lack of management tools and interoperability.
  • How much spending on services? Interestingly the Yankee Group believes that within 24 months 15% of enterprises will spend more than half of their budget on cloud computing services, which seems like a high figure to me.
Anyway to make up your own mind you can listen to a replay of the webinar here, and we will also be looking at the session in more depth in a forthcoming Enterprise Briefing story.

11 February

Get closer to the supply chain, get closer to business success

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Virtual Community Networks were one of the emerging trends at last year's Orange Business Live. Where it was once enough to sell to customers based on a perception of value that was product-centric and delivered to undifferentiated customers, businesses now need to get closer to those customers by collaborating directly with the supply chain to deliver the single customer experience.

Ubiquitous connectivity makes it possible to be continuously linked to the supply chain so that real-time collaboration is possible that streamlines business processes and also affords cost efficiencies. This development has been speeded along by social networking, although social networks are commonly constructed on the public Internet where users know and accept the security and privacy risks.

Secure the borders and forecast demand

In the enterprise, security must be harmonized between partners and suppliers so that information that would normally only be accessible by internal staff is made available safely to third parties. All devices on the network must comply with corporate security policies if the security perimeter is to be extended to include trusted third parties.

Once this is achieved, the business can shorten time-to-market, reduce inventories and the costs associated with maintaining them, and minimize order fulfillment cycle times. This is achieved by joint planning and collaboration between the company and its suppliers where demand forecasting, information sharing and coordinated shipping are optimized to result in increased availability to the customer, while reducing inventory, transportation and logistics costs.

One of the biggest developments in recent months has been building the flexibility into the supply chain to allow customers to personalize a product the way they want it before it is delivered. And that depends in no small part on instant contact between the supply chain and the enterprise. Without the speed to react to dynamic changes in the market and keep up with these personalized customer demands, so the logic runs, businesses are lost.

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9 February

M2M continues to race ahead

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As anyone attending last year's Orange Business Live event will remember, M2M is growing into quite a phenomenon. Ten years ago, it was a smart concept with few deployments behind it. These days, businesses across many vertical sectors are using it to lower production costs, optimize the supply chain, lower energy consumption and increase operational efficiency. How many M2M devices are we talking about? Globally, about 412 million within four years according to the latest figures. There's an interesting overview of embedded M2M as the pervasive Internet in this M2M trends podcast.

About 1.5% of cellular network connections worldwide are used for M2M applications, showing that there's a great deal of headroom in the network for more. Utility metering is expected to become the most widespread application, offering lowered operational costs to utilities and more control over energy consumption to consumers. We looked at the main issues surrounding smart metering in this blog. But, hard on its heels will be the maturing of healthcare remote patient monitoring solutions, intelligent transport systems, manufacturing monitoring and security applications such as vehicle tracking and CCTV. We have written about telematics in this blog and recorded this podcast with Romain Jourdan, an Orange expert in in-car telematics.


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1 February

Unified communications: an ideal Cloud proposition

P MOBILE.gifUnified communications (UC) are an appealing concept with their promise of breaking down communications barriers and making it easier and faster for employees to find, reach and interact with colleagues, customers and partners. 

To date, however, many companies have hung back from launching full-scale roll-outs of UC, deterred by concerns over the cost and complexity of the technology involved. Could the idea of hosted UC solutions, delivered as software-as-a-service (SaaS), win them over? 

In this article, we examine the 'UC-as-a-service' proposition, the benefits this model offers and how the market is developing. 



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29 January

Government cloud computing interest heats up

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Since the start of 2010, one of the hot topics in the IT press has been cloud computing in the government sector. The need to control costs while maintaining high levels of service has led authorities the world over to re-assess their IT needs, and it appears that the flexibility offered by cloud computing has become flavour of the month.

In the UK, the Government's Chief Information Officer, John Suffolk, recently iterated his feelings on the topic, endorsing a hybrid model where a private government cloud (or clouds) co-exists with public cloud services, which can in some cases deliver better numbers due to the sharing of costs across a wide user base -- one of the big benefits touted for the cloud. Suffolk's argument is straightforward: "if it delivers good citizen outcomes at a price you can afford then use the public cloud" but -- crucially -- Suffolk also believes that personal data should not be stored in the cloud.

This highlights one of the primary concerns about cloud adoption, which is data security. The amount of sensitive and private information collected by the government is enormous, including healthcare details and financial information, and security problems can be extremely embarrassing. Problems related to security in government IT were discussed here.


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29 January

Current Analysis speaks about Cloud Computing

As part of our Autumn video tour of the US, we also recorded a number of podcasts. This is the first of them: a chat with Current Analysis analyst Amy Larsen DeCarlo that we had in Virginia. Amy speaks about where cloud computing is going, what sort of applications and services are suited to this approach, and how much attention enterprises should be paying to this new approach to computing.

Click the play button below to hear the interview:

18 January

Give&Get Channel

Orange-innovation.tv introduces the Give&Get Channel, the first innovation speed dating channel. Give&Get is a virtual marketplace where starts-upers, innovators of any kind can exchange their High Tech Skills.

You can watch Give&Get videos if you are looking for high-tech skills in an open innovation perspective to speed up your project and enlarge your scope with people coming from all around the world. You can send your own Give&Get video, moreover each month, a selection committee select the most interesting Give&Get video. The winner will benefit of VIP contact that will help him to reach his goal.

Now, you can learn more about the Give&Get channel watching this video of Martin Duval

18 January

Six futures for Cloud computing

Cloud computing tops Gartner's recently released list of Top 10 strategic priorities for CIOs in 2010. Their analysts say that organizations need to be actively considering how to approach the Cloud "in terms of using Cloud services, developing Cloud-based applications and implementing private Cloud computing environments".  That's a daunting list of complex issues to consider over the coming year, but with the Cloud evolving rapidly, CIOs also need to turn their attention to the mid- to long-term.  

So how is Cloud computing likely to evolve over the next ten years? Thierry Coupaye within Orange Labs has been exploring that question and, by analysing current trends and emerging technological developments, have come up with six models of Cloud computing that they believe will emerge over the next decade. 

No one model is independent of the rest. Some are more technology-oriented and some are based on business usage. But together, the six models provide a more structured and usable vision for the possible future of Cloud computing.  

1. The Vertical Cloud 

Vertical Clouds are basically software-as-a-service (SaaS) for particular specialized applications and industry domains. For example, companies with expensive video transcoding software for multimedia services (for example, Web TV) sitting on their servers could turn idle time into a Cloud transcoding services for third parties.  

As applications for specific markets continue to morph into online Cloud offerings, the trend will extend to cover whole classes of applications in vertical markets, such as healthcare or government, deliverd on a SaaS basis. In addition, data center owners and operators, even for niche applications, may follow the Amazon example and turn their spare or idle in-house capacity into Cloud services for external third parties.  

The idea of industry-specific SaaS is not new - but the market for it needs to catch up. Nicholas Carr, author of 2008's 'The Big Switch', a best-selling exploration of the likely economic and social consequences of Cloud computing, first blogged about the "verticalization of the Cloud" two years ago, concluding that it would "make sense for industries characterized by highly specialized applications", such as retail, healthcare and financial services.   

2. The Mobile Cloud 

The Mobile Cloud is about accessing Cloud resources from devices such as mobile phones. Today, most mobile phone users download and execute local applications on the device itself, but increasingly, they will access them through a mobile browser. The application itself and the processing power required for it to run will live in the Cloud.  

Recent research conducted by ABI Research, predicts that by 2014, almost 998 million users of mobile phones will use online applications, compared to 42.8 million in 2008. "By 2014, mobile Cloud computing will become the leading mobile application development and deployment strategy, displacing today's native and downloadable mobile applications," says ABI Research's Mark Beccue.   

That's good news for users. With Cloud-enabled phones, they will be able get access to the internet using devices with lower battery requirements, longer useful lives and that are better adapted for emerging markets. And it's good news for developers of mobile applications, too. Today, they have to develop multiple versions to run on different devices; by contrast, they will need to develop fewer versions for the Cloud. 

3. The Personal Cloud 

The Personal Cloud describes a user-centric model of Cloud computing where an individual's personal content and services are available anytime and anywhere, from whatever device they choose to access it.  

Today, most people have to juggle multiple devices to access all their services. What the personal Cloud could provide is a single and portable access-point to multiple Clouds. And in emerging economies, where people often share mobile devices, each individual would be able to log into their own Cloud from the shared device. 

Frank Gillet, an analyst with Forrester Research, recently authored a report on the Personal Cloud and how it will shift individual computing "from being device-centric to information-centric". He concludes that digital devices and services will combine to create the Personal Cloud, "an internal resource for organizing, preserving, sharing and orchestrating personal information and media." 

 4. The Open Cloud 

In the long term, Cloud computing based on technology standards and open source solutions will compete with and then surpass proprietary solutions. The Open Cloud foresees a model offering customers complete application portability and infrastructure interoperability, so that they aren't 'locked in' to a single Cloud provider.   

Many Cloud providers are already using open source technologies. And standardization efforts, focusing on APIs and middleware, are being spearheaded by a number of industry bodies

In March 2009, for example, a number of leading technology companies published The Open Cloud Manifesto, a set of core principles that aim to ensure that organizations will have "freedom of choice, flexibility and openness as they take advantage of Cloud computing."   

Right now, however, many of the initiatives to open up Cloud computing compete or overlap. 

5. The Inter Cloud 

The Inter Cloud envisions the future Internet as an online marketplace of resources and services, where Cloud brokers help their customers to pick the most suitable providers to meet their needs - a task that many will find increasingly overwhelming as the range of providers and services out there expands.   

These brokers will bring added value through global services that reduce complexity for users. Services might include single billing, metering, network connectivity, end-to-end SLAs, identity and portability aids for service migration, among others.  

"What sits between you and the Cloud will become a critical success factor in Cloud computing as Cloud services multiply and expand faster than the ability of Cloud consumers to manage or govern them in use," said Gartner analyst Daryl Plummer in a recent report on Cloud brokerages. "The growth of service brokerage businesses will increase the ability of Cloud consumers to use services in a trustworthy manner." 

6. The Total Cloud 

The Total Cloud will enable organizations to complement their data center resources with the unused capacity of 'edge resources', such as PCs or even consumer devices such as gaming platforms, which could provide extra storage capacity, processing power and bandwidth. But while there is a large amount of unused IT capacity at the network's edge in such devices, this vision is some way off, due to the considerable technological, regulatory and market concerns that could stand in its way.  




 
 

18 January

Keeping IP telephony security under lock and key

C KEY.gifIP telephony places voice squarely in the data world, with phone calls becoming another service on the LAN and global Internet. While the convergence of voice and data opens the way to powerful network and cost efficiencies, it also means that IT managers need to be prepared for added security threats.

IP telephony services based on VoIP chop up voice into data packets, routing them through the IP cloud and then re-assembling the data stream as a coherent, interactive conversation at the other end. As a growing number of organizations have chosen to handle their voice calls this way for cost reduction or increased functionality reasons, there are also a rising number of security threats as voice services are exposed to the same security weaknesses as the IT network.
 
The reason these threats are sometimes tougher to tackle is two-fold. Firstly, voice is viewed as one of the most business-critical services - a 'go-to' when email, instant messaging or video conferencing fail. Secondly, little focus has been placed on the ways that voice is exposed to security threats in the data domain, since voice has historically been transported over the PSTN and therefore not subject to many security weaknesses beyond physical outages.

Security weak spots
The main areas of weakness throughout the data and voice network are in the LAN and WAN network themselves, and session controllers, applications and end points attached to the network such as mobile phones, VoIP handsets, PCs and laptops.

The network is subject to security weaknesses in two discrete segments: the WAN and the LAN. The security of the WAN is usually the domain of the service provider or ISP that provides the access gateway to the Internet and helps erect other services such as VPNs and extranets. Although the WAN itself is less likely to be the target of attack, its role in facilitating access to the enterprise LAN is undeniable. The LAN can be subject to external threats or in some cases, attack from within the organization either by disgruntled employees or through innocent means such as downloading a virus through an email attachment.

 Specific network elements such as wireless access points, session controllers and the centralized software servers that allocate network and application resources for IP telephony calls, can also be the target of attacks.
 
Applications can be subject to threats or can act as hosts for attacks that distribute themselves to other applications, endpoints or network elements. Similarly, end points which are attached to the network, applications or are reliant on session controllers are also weak points.

Six main security threats
There are six main threat types to the enterprise network:
1.    Viruses
2.    Distributed Denial of Service (DDoS)
3.    Spam
4.    Toll fraud
5.    Eavesdropping
6.    Protocol threats

Six prescriptions for treatment
1. Viruses consume IT resources and can take the form of emails soliciting quick fixes for issues that don't exist, extraneous attachments, applications that use the email address book as a launch pad for further attacks or spyware. Commercial anti-virus applications at the desktop perform background checks on processes and files and eradicate or quarantine infections. Enterprise strength Intrusion Prevention Systems (IPS) can block common virus attacks that exploit IP telephony protocols such as H.323 and Session Initiation Protocol (SIP) by detecting typical attack signatures and traffic patterns. An inoculation program to download and append all current security patches can avoid common threats.
 
2. Viruses can sometimes be the launch pad for DDoS attacks, which typically flood servers and system resources with spurious requests for service, overwhelming the network and bringing it to a halt. These attacks can be tough to isolate because they use a fraction of the processing power from a high number of distributed computing resources to trigger an attack. Typical attacks include connection requests from bogus IP addresses or the flooding of routers with malformed data packets. The best response is to establish buffer limits on the processing of such packets or resource requests. Creating Virtual LAN (VLAN) services to effectively segregate IP telephony traffic in its own tunnel across the LAN can also save it from attacks, as can a series of failovers that keep sessions running when certain session controllers are disabled.

3. Spam can be limited by black listing known spam offenders. Often, junk emails sent to in-boxes which are linked to the IP telephony system as text-to-voice or voicemail provide a frustration to users who are desperate to check valid messages buried under specious spam. Enterprise email servers can combat this issue through the deployment of anti-spam applications and users can do their bit by hand-selecting email they believe to be spam and filtering it out.
 
4. By contrast, toll fraud is more of a threat to the bottom line than it is to the technical health of the network. International minutes can be stolen through a number of approaches including social engineering, voicemail box or PBX hacking. Receptionists or auto-attendants can be trained not to transfer calls externally to expensive outside lines to avoid social engineering, while the threat of hacking can be diminished by careful voicemail box password selection or monitoring remote access attempts to PBX maintenance ports.

5. Eavesdropping is theoretically possible but difficult to accomplish in the data world. Although would-be hackers could eavesdrop on an IP telephony call by reassembling the data packet stream, it's difficult to establish which packets are not just regular LAN traffic. But, there is a weak spot - the session control layer - because it knows which end devices are communicating with others. Encryption is one answer, although it can be expensive. More common is the practice of establishing VLANs, and limiting IP telephony to its own VLAN.

6. IP telephony and VoIP protocols such as Session Initiation Protocol (SIP) and H.323 were originally developed to be open, so that developers could build new services using them. However, this openness allows for protocol-based attacks to be created, such as taking control of call sessions or initiating bogus multi-party calls. This threat can be minimized by using a proxy server to apply strong authentication that stops malicious third parties from assuming control, and by deploying IPSec.


15 January

The limits to Moore's Law

C DATA CENTRE.gifHere's a fantastic article from Futurity writer Danny Bradbury on the limits to Moore's Law...

Moore's law was first created in 1965 to describe the cost and space effects of minimisation. The law will reach its 50th birthday intact, but it will take a lot of innovation.

It was only a few words, but it set the pace for the development of microprocessor technology for decades to come - and for other things besides. Moore's Law was coined by Gordon Moore, later the co-founder of Intel, when he worked for Fairchild Semiconductor in 1965. The complexity for minimum component costs has increased at a rate of roughly a factor of two per year," he said in his groundbreaking article, "Cramming more components onto integrated circuits". Later, he revised it to every two years, citing the increased complexity of components.

Limits to Moore's law

Moore's Law was originally developed purely for describing the number of transistors that could be put on a chip at minimal cost. The problem for chip designers is that Moore's Law depends on transistors shrinking, and eventually, the laws of physics intervene. In particular, electron tunnelling prevents the length of a gate - the part of a transistor that turns the flow of electrons on or off - from being smaller than 5 nm. The other problem hindering smaller transistors is heat extraction. The more transistors there are on a chip, the more heat it produces, and the greater the chance of a malfunction. New methods must be developed to remove that heat from the chip.

Intel researchers published a paper in 2003 called Limits to Binary Logic Switch Scaling - a Gedanken Model. The paper anticipated that the industry would reach the limits of Moores law, and said that a trade-off between density and speed would be necessary to keep extending it.

Hard drive storage has suffered from similar problems to electronic transistors on chips. The devices store information magnetically using a series of ones and zeros. They use grains of magnetic material to store this information. Storage vendors have continued to increase the density of the magnetic grains on a hard drive by making them smaller. However, as density approaches 100 Gb per square inch, the physical law of superparamagnetism looms. When small enough, the magnetic grains will alter their magnetic state unpredictably, switching ones to zeros and vice versa.

From horizontal to vertical

The use of carbon nano tubes and silicon-germanium nanowires could extend the performance of transistors to some extent, although their size would remain roughly the same. Another potential solution is the use of 3D chips, in which layers of transistors are stacked on top of each other. This would maintain the horizontal size of the chip, while drastically increasing its transistor count. In 2008, researchers at the University of Rochester managed to create three-dimensional circuitry running at 1.4 GHz. That chip optimized the way that components interact with each other vertically, rather than simply layering banks of regular transistors on top of each other without having the different layers communicate.C CPU.gif

On the storage side, companies have increased the density of recording media by engineering the magnetic grains on the surface of the disc into a specific pattern. Traditionally, they have been applied to the platter of the disc in a nonuniform way. Using patterned grains makes it easier for manufacturers to squeeze more of them together while avoiding the super paramagnetic affect. Heat-assisted recording, with microwave or laser light, is used to heat up the area of a disk being recorded, giving its bits more permanence.

More recently, vendors have turned to perpendicular recording. This uses a vertical magnetic channel through the disc, rather than simply relying on magnetic material on the surface. These form a closed magnetic field, making it more difficult for areas of the disc to interfere with each other magnetically.

We are currently recording data at around 530Gbits per square inch using perpendicular recording. Getting to a Terabit will require one or all of these methods.

Medium term: from electronics to optics

In the longer term, more fundamental shifts will be needed that may move us away from electron-based chips altogether. Optical computing would replace electronic transistors with optical ones that used light (photons) instead of electricity (electrons). Optical chips would be faster because photons travel more quickly than electrons. The components could theoretically also be smaller and more tightly integrated, because beams of light can pass through each other, whereas electrical links must pass around each other.

In September 2009, researchers at the University of Bristol's Centre for Quantum Photonics created a set of optical transistors that were able to perform the first computations.

Companies have been using optical storage for years, but they are now beginning to explore the concept of using holography to store data. Shining beams of laser light through a material and intersecting them at different angles enables multiple bits of information to be stored in the same place. This could theoretically enable storage media to hold tens of terabits per cubic centietre. Although broad-scale commercial adoption of such technologies is still some way off, companies  have shown prototypes, and at least one company - InPhase - is already selling holographic storage systems to early adopters.

Longer term: smaller and smaller

In the longer term, quantum computing could fundamentally change the way we look at computing. It works using quantum mechanics, one of the principles of which is uncertainty. Quantum particles (called qubits) can be in multiple states that once, meaning that instead of having to switch them many times to carry out multiple computing permutations, quantum programs can execute many functions at the same time.

In November 2009, researchers at the US National Institute of Standards and Technology demonstrated the first programmable quantum computer, although it only used two qubits. We still have decades to wait until commercially viable quantum computers arrive.

C CABLING.gifOn the storage side, companies such as IBM and HP have been working on both storage and computing systems that work at a molecular level. Layers of molecular strands, laid out in a grid, could also form the basis for a microprocessor.

While we wait: virtualization

Until significant technological advances in storage appear, the innovations must come in software. Virtualization technology enables us to use more of each processors' capacity, by separating the software processes running on them into separate virtual machines, ensuring that they do not interfere with each other. This can increase processor utilization from 10-15% up to 80-90%.

Virtualization can also help us to maximise our storage capacity. In traditional dedicated storage environments, where one physical disk drive is allocated to a particular application, much storage capacity goes unused. Instead, we can virtualise our storage into storage area networks, in which any disk in a high-speed network can store some information for a software application. This allows us to spread our data more evenly over a lot of disk drives, minimising the unused space.




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