February 2009

26 February

Ethernet, MPLS and IP dominate the WAN

Which enterprise network technologies are most common?
Over the last five years, two technologies have come to dominate fixed enterprise networks: multiprotocol label switching (MPLS) and Ethernet. Demand for both MPLS IPVPN and Ethernet services are booming. Analyst Infonetics says that worldwide Ethernet service revenue grew 33% to $12.5 billion in 2007, and IP MPLS VPN service revenue grew 20% to $13 billion; it predicts that both will grow strongly through to 2011.

What's so special about MPLS and Ethernet?
MPLS was first conceived in the late 1990s to improve the performance of IP traffic over the network. For this it uses classes of service that allow enterprises to put time-sensitive applications such as VoIP in a priority class, and batch traffic such as email in a 'best-effort' class. MPLS IP VPNs are popular with enterprises because they offer quality of service and security guarantees, and allow them to utilize a single network for all voice, video and data traffic. More recently, advances in Ethernet technology have seen it make major inroads into the enterprise WAN. The main drivers for Ethernet's popularity are: ubiquity, which makes equipment economical; flexibility, as enterprises can scale bandwidth up and down easily; and its support for IP.

Why is IP fundamental to enterprise networking?
Internet Protocol (IP) is a protocol for communicating data over a packet-switched network and is the fundamental language of Internet communications. The advantage of packet switching is that it allows multiple transmissions to share the same network, so that one 'converged' network can carry all information and services - voice, data, and video. It is simpler and more economical for a large enterprise to run operations for the entire organization on a single network. 

What is a virtual private network (VPN)?
The virtual in a VPN allows you to create a private network within a much larger network, such as the Internet or a service provider's backbone. There are two types of VPNs: trusted VPNs and secure VPNs. MPLS IP VPNs are an example of the former. They allow service providers to create virtual circuits within their IP network and sell these as VPN services. MPLS isolates the traffic streams from one another so that customers can share the same network, much like legacy ATM or Frame Relay services.

What is the difference between an access and core network?
A multi-site enterprise WAN will typically comprise an access and a core network. Also called backbones, core networks such as MPLS IP VPNs and Ethernet consist of the service providers' high-speed worldwide infrastructure, to which it provides access through a series of points-of-presence (PoP). Access networks are essentially the link between those core network PoP and the enterprise site. Network technologies used here include xDSL, T1/E1, fiber, Ethernet, ISDN, dial-up, wireless networks such as WiMax and microwave, and satellite.

This article can be read in its entirety here

24 February

Green ICT focuses on fix to economic crisis

Remember the first half of 2008? Most developed countries and many emerging ones were taking action to comply with the Kyoto Protocol, and sky-rocketing oil, coal, iron, aluminum, and copper prices were making everyone conscious of the need to wisely manage and consume natural resources. Climate change was high on the agenda of most governments and CEOs; CO2 credits were traded at the Kyoto Stock Exchange; and plans were being prepared to reduce CO2 emissions in 2020 and 2050. Despite the subprime and natural resource crisis, it appeared that governments, enterprises and individuals could work together to avoid a major global environmental crisis happening in the next decade.

But then, in September came the bankruptcy of Lehmann Brothers followed by an endless flow of bad news that heralded the global recession spreading around the world. Moves to Chapter 11, bankruptcies, budget cuts, decreasing revenues, layoff plans, state deficits, stocks massacre, and profit warnings have been the top headlines since last October and are not going to disappear overnight.

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23 February

Mobile will save the world from recession - maybe

It was inevitable that someone at Mobile World Congress in Barcelona last week would float the notion that mobile communications is set to save the world from the evils of recession. The announcement, when it came, was direct from the GSMA and early in the news cycle suggesting that the mobile industry sees its role as one of helping enterprises accelerate out of recession.

The GSMA reckons that release of new spectrum for mobile broadband services this year will ultimately add the equivalent of US$211bn to China's GDP and approximately US$95bn to India's. In addition, GSMA director of media and entertainment, Henry Stevens said that he thinks mobile advertising can now position itself as the driver of a wider advertising recovery towards the end of the year. It's an interesting concept to view mobile services as a means by which organizations can position themselves for recovery and it's almost as if the mobile industry thinks the recession presents an opportunity for enterprises to organize themselves technologically for recovery. It's going too far to say mobile is going to save the world from recession but there is limited mileage in assuming that a quiet time for businesses means they can make long range decisions about the shape of their business after the recession - and mobile will have a role in that. 

Those prospects aside, MWC wasn't all plain sailing for the mobile crew, with some notable absentees at the event and many exhibitors bracing for a tough year. Apple, in common with previous years, stayed away and the GSMA has reported a small dip in visitor numbers on last year. All of this doesn't quite add up to saving the world but, as the GSMA points out, the mobile industry hasn't been circulating the corridors of government with its begging bowl seeking hand-outs to sure up the industry. There's a lot more health and wealth here than in other sectors.

17 February

LTE again, this time with added apps stores

The mobile industry has performed a classic repeat of its eyes-are-bigger-than-its-stomach feat of choosing LTE as one of its hype topics at this year's Mobile World Congress. The buzz in Barcelona is again focused on building bigger, better networks and as the vendors rush headlong down this path, attention to monetising what's already in place is in some respects being pushed to the back burner.

Thankfully, this network fixation has been diluted this year with a dual focus on application stores. Every man and his dog seems to be launching one with Microsoft, Blackberry and Nokia joining Google and Apple along with leftfield vendors like Amdocs and Comverse offering stores as a service to operators. It's interesting but, with the exception of Blackberry, which has devoted most of its stand to its network of business application providers, the apps on offer are mostly fluff. Away from the toys for consumers Blackberry has apps ranging from SAP to highly specific healthcare applications. The uses of such functionality looks very interesting for enterprises, although I expect they will give CIOs management headaches. Word on the street also has it that Blackberry is poised to add WiFi capability to a Storm-like device in the near future. The company itself wouldn't be drawn on the prospects of this but the added connectivity option would fit well with the connectivity requirements of such apps.

12 February

Microsoft OCS R2 in clear PBX play

Back in August 2008, I blogged about Gartner's decision to put Microsoft's Office Communications Server in its Corporate Telephony Magic Quadrant and pondered about how long it will take for Microsoft to position OCS as a complete telephony platform. OCS 2007 release 2, which was announced in October 2008, was launched last week. As expected, the major improvements over the previous version's voice capabilities were the addition of audio conferencing and SIP trunking.

So does Microsoft view OCS R2 as a PBX replacement? Well the launch event was instructive, because Microsoft clearly positioned OCS R2 as an entire communications system that could replace legacy PBXs. It concentrated particularly on presence and audio conferencing and had no details on integration with other PBXs – unlike the R1 launch in 2007. It featured a Q&A with OCS users Intel and Sprint, both of which pointed to its capability with voice. For example Michael Browne, vice president of client services at Sprint said: 

"With our existing Microsoft installed base, Office Communications Server was the most economical way to change out about 490 legacy PBXs. Other unified communications options required substantially more infrastructure. Office Communications Server allowed us to leverage our existing Microsoft infrastructure and provide employees with affordable headsets for voice calling."


However, most commentators continue to say that OCS still doesn't qualify as a full-fledged communications platform, even with these latest voice revisions. Current Analysis' Brian Riggs says that "Release 2 Microsoft OCS remains generally unready to act as a full-scale PBX replacement," pointing out that OCS continues to lack features that are requirements for traditional PBXs, such as branch office or vertical-specific call control. However, Riggs says that he is confident that these shortcomings will be resolved in time, and that OCS R2 is a solid foundation for a future fully-functional PBX replacement.

Marty Parker takes a different view. On a No Jitter blog, he says people perhaps shouldn't get so hung up on what telephony feature OCS has or hasn't got, instead perhaps they should consider that Microsoft could be inviting enterprises to look at voice communications in a new way. He suggests the alternative view is:

"Microsoft is solving enterprise communications problems differently. It looks to me like they asked themselves the question: What would be the best way to deliver communications for a "people-ready business" that would reduce costs, improve business outcomes and provide both productivity and control to the users? If the new software also fills in the PBX checklists, that's so much the better."


But most commentators now seem to be now arguing about details and they seem to agree that OCS will be a fully-fledged communications system before long. So what do you all think and does anyone have any interesting experiences they would like to share with us on using Microsoft OCS?

9 February

Will Yammer follow hot on the heels of Twitter?

Use of Twitter, the micro-blogging web-site that allows people to post 140-character updates, has exploded in the UK over the last few months; traffic to the site increased by a staggering 974% over the past year according to Techcrunch UK. The site itself now ranks as the 291st most visited site in the UK, and was described by the Telegraph as the best known microblogging site:

Twitter is probably the best known of all the "microblogging" sites, and it has been incredibly popular with geeks and the technorati since it launched in 2006. People post messages to the site, either via the web or by text message, and these "tweets" are forwarded on to their network of friends and contacts

Twitter's seminal moment in the UK was on the Jonathan Ross show on the 23rd of January . This show marked the return of Jonathan Ross following an "enforced holiday". Both the presenter and his guest Stephen Fry- a self-confessed geek and blogger- are avid users of Twitter, and on the show they discussed how the site works and how they use it.

Following this programme, numbers of @Stephenfry followers have rocketed. Stephen Fry now has over 160,000 people following him on Twitter, which means that he has overtaken many of the superstars of the tech world such as Kevin Rose (you see those Digg buttons to the right? He's the guy behind them) and is closing in on the number one, Barack Obama.

This prime-time moment brought Twitter to the attention of the general public, and it hasn't looked back since. Interest in @stephenfry reached a new level as a result of the "#frylift incident". Stephen got stuck in a lift  for about an hour and twittered his followers with updates. He even used his iPhone to Twitpic a photo of his predicament (viewed 77,000 times) .

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This incident was featured in several  major news papers, including The Guardian blog and even the Daily Mail

So, as Twitter grows massive in the UK and elsewhere, the next question is - will micro-blogging take off within the enterprise? Recent Techcrunch50 winner Yammer provides a micro-blogging platform to enterprises, free of charge and with some level of confidentiality. Yammer is pretty much like Twitter, but is designed for closed groups or companies. Orange has a group on Yammer with a growing number of active users. Jason Calacanis, CEO of Mahalo, is quoted as describing Yammer as "The best communication and productivity tool available in the market today." on the front of the Yammer home page.

My own view here is that most people aren't inclined to blog because they find it too difficult. Micro-blogging, on the other hand, is so simple that there's almost no excuse not to. Its adoption by so many time-poor people is, in my opinion, an indication of how easy it is to interact with your customers or your peers.

Twitter is already being used by several big organisations and brands to talk to their users. For example,Scott Monty from Ford and Connor Maples from Orange. Lance Armstrong (not an enterprise but very much a brand - Livestrong) is twittering his training in the run up to his forthcoming Tour de France title challenge, in an attempt to be transparent and interact with his fans.

Twitter is increasingly being accepted as a worthwhile tool which allows you to interact with your community. Does micro-blogging have a place as a collaboration tool specifically within the enterprise, and will this help Yammer follow hot on the heels of Twitter?

6 February

Hackers exploit economic downturn

Recessions lead to an increase in traditional crime and that's likely to be the case in the virtual world. McAfee has recently reported that it expects hackers to exploit the economic downturn perhaps by hoodwinking the credulous as well as returning to 'old-school parasitic infectors' this time using USB sticks rather than floppies. The security firm also reckons that data theft and breaches from cybercrime may have cost enterprises US$1 trillion in losses and damage repairs last year. Its research among 800 CIOs revealed that the recession is likely to increase attacks and not just from the traditional, external criminal element.

42% of respondents think that displaced workers will present the greatest threat to sensitive information on the network. Those CIOs could have a point if more instances such as last months attack on former employer, mortgage firm Fannie Mae, by computer engineering contractor. The contractor was indicted on computer intrusion charges having been alleged to have changed computer settings without permission from his employer and hidden malware code in a server that was programmed to become active on 31 January. FBI agent Jessica Nye told the court that if this timebomb had gone off it would have reduced, if not shut down, operations at the firm. The contractor had been employed at the firm for three years and were it not for the chance discovery of the timebomb in late October by a Fannie Mae computer engineer five days after the contractor was laid off, the outcome could have been disastrous.

Organizations would be well-advised to look inwards in these trying times.

4 February

Tiny PCs still a closed book to enterprises

Netbooks, the tiny personal computers that do without expensive software such as Windows, are enjoying strong growth but can they ever be applicable to enterprise users? Well, some say yes and some say no. A recent study by Deloitte reckons that netbooks are likely to be the fastest growing segment of the PC market this year and will account for 15% of portable PC sales. However, for enterprise users, there’s both a perception and practical barrier to uptake. “I think acceptance in the enterprise is very small,” IDC analyst Bob O’Donnell told The Industry Standard recently. “In fact we don’t even track that. We do believe about 7% of netbooks are going in to small business but I don’t know of any companies standardising on them.”

Gartner goes further and thinks only a single per cent of netbooks sold globally over the next two years will be shipped to business. Perhaps this is a status thing. After all, no one wants a compact company car when they could have a prestige sedan so why would they settle for a Spartan laptop spec?

However, unenthusiastic predictions aside, a recent ZDNet leader column trumpeted that for such a small, unthreatening device aimed at teens, tweens, travellers and social networkers, the netbook has created a climate of terror among hardware makers. Enterprises want cheap hardware and have many mobile users so I question whether the absence of Windows is a sticking point for such organisations in the current climate. In addition, enterprise demands for manageability, security and configurability could enable vendors to claw back the lost hardware margins. Another point worth considering is that while PC laptops continue to crash in price is there really much value in providing netbooks to all the but the lightest travellers?

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