Window on WANs

Sep 14 2009   8:39PM GMT

From the WAN mailbag: IPv6, WAN jobs, the carrier connection

Tim Scannell Profile: TScannell

In order to succeed, journalism has to be a two-way street.  Reporters talk to people, these people provide the framework for an article, and then people respond to the article through letters, email and op-ed articles.

Service journalism – the kind that populates the virtual pages of – is even more dependent on reader interaction since it is more focused on news you can use rather than the traditional who did what to whom and why approach.  The readership is obviously more technical and more interested in news and tips that can be utilized in their day-to-day jobs, and more willing to share observations from the WAN front lines with other readers.

The following is an  edited  sampling of some of the letters and comments we received from the readership over the past several weeks via email, the social networking and, yes, even through old school mail routes.

On a recent series of articles and a video report focusing on the move toward IPv6 and the impending IP addressing crisis:

I believe that moving to ipv6 is almost impossible now.  As far as i can see all relevant network equipment was already adopted few years ago, but applications are still coded (many of them badly) for v4.   More important,  it scares many network administrators.  So, unless something very unexpected happens,  we are going to stay with the v4 infrastructure for a very long time.

G. Michaelov, Technical account manager, Aman Computers


I’m not seeing a massive shift toward IPv6. Because most enterprises NAT a small set of public IP addresses to a large set of private addresses, the urgency of moving off IPv4 is just not there.

– T. Yohe, VP engineering, Stampede Technologies

In response to a LinkedIN query on improvements in the WAN jobs market and related article an apparent thaw in WAN employment opportunities:

Interestingly, WAN performance will usually be an issue for companies that have gone through a consolidation process.  I’ve always approached WDS / APM as an enabler for companies to deploy other technologies on the WAN, and also as a way to better manage what they already have.  So,  based on this, even in a recession, these types of technologies should be high on the list of ‘things to address’ in any organization that’s connected with some geographical distance between sites.
Interestingly on looking around ‘personally’ for opportunities in this area, most if not all of the companies I spoke to (Vendor and SI), were looking to address recruitment again in Q4 09. Some of the SP’s I’ve engaged with are also actively building an ‘application aware’ service, which should generate some interest from the bandwidth provider side.

– A. Ford, proposition manager, Telindus

In response to a series discussing key points in selecting, deploying and ‘future-proofing’ your WAN solution, as well as a look at FTP file transfer alternatives:

I just want to expand on the point about carrier/cloud/managed deployments as we are seeing an increased demand in this area from business to service smaller offices.  It is really difficult for companies to justify spending thousands of dollars at each small office (typically using DSL) for WAN optimization gear.  The compelling value of carrier deployments is in the centralization of gear in POPs around the globe so one can take advantage of economies of scale in being able to share the WAN optimization equipment investment across a number of remote locations.

While there are trade offs in that you cannot take advantage of compressing that local circuit to save on bandwidth spend, end users can still benefit from increased application performance across the WAN.  Hybrid solutions are a great way to optimize the cost/benefit trade off.  Use CPE where the bandwidth savings due to compression can be significant while using a network approach to optimize traffic for smaller offices where CPE expense cannot be justified.

– K. Lynch, product manager, Virtela

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