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Why And How Did RCS&RDS, Romania's Largest ISP, Deploy IPv6?

Romania IPv6 usageWhy did RCS&RDS, Romania’s broadband market leader, deploy IPv6 in their network?  How did they do it?  What did they have to do?  And what were the results they saw?

In this excellent case study provided to us by Liviu Pislaru, the Chief Architect for IPv6 for RCS&RDS, he answers all of those questions and much more.

I want to pull out a couple of specific points, in particular his answer to why they did this:

The trigger for IPv6 deployment wasn’t IPv4 depletion. We still have plenty of IPv4 addresses and this is gold nowadays. We wanted our engineers to gain experience with IPv6 when the size of the IPv6 internet was less the 1% and chances to affect customer services was minimised.

They went ahead now because they knew that sooner or later they would need to make the transition… and wanted to get the experience before it became critical for them to have it.  As Liviu notes, they were ready for World IPv6 Launch in 2012 and rapidly became one of the leaders globally in IPv6 adoption.

Now, for people looking at this today, the global IPv6 Internet has already grown past 1% by any of the statistics sites such as Google’s IPv6 stats… but Liviu’s point is a good one – NOW is the time to gain the experience before you need to do so!

Liviu notes how much traffic they now see over IPv6:

Nowadays our IPv6 traffic goes to 30-35G in peak time, mainly because there’s more IPv6 content on the Internet. Our measurements show that 25% of a dual stack residential customer traffic is IPv6 traffic.

This is consistent with what we’ve heard from other ISPs (some of home have even said higher values such as 40%) and makes sense when you realize that many of the sites that home users would visit are all IPv6-enabled, such as all of Google’s properties (including YouTube), Facebook, Wikipedia, Yahoo, Bing, Netflix and more.

While they had great initial success in 2012, the rate of IPv6 adoption has not climbed greatly in Romania and Liviu gets into some of the reasons he believes this hasn’t happened. He also provides a link to a site where you can monitor the status of IPv6 on RCS&RDS’ network.

All in all it is an excellent case study and I would strongly encourage you to read it! Thank you to Liviu for providing us this case study and for all of his hard work there in Romania bringing about this great level of IPv6 deployment!


Interested in more stories of IPv6 deployment?  Check out our IPv6 case studies page – and if you want to get started with your own transition to IPv6, look at our “Start Here” page to find IPv6 resources most appropriate to your type of organization.