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Moving to IPv6: Rebuilding the Heart of the Internet Without Missing a Beat

Within the coming decade, Internet Protocol version 6 (IPv6) will be key to enabling 50 billion connections among people, processes, data, and things in the Internet of Everything (IoE)But how we get there from here is not a simple matter.

I’m very pleased to invite Mark Townsley, Cisco Fellow and recognized industry expert on IP, to discuss this important transition in the second of our three-part blog series on IPv6. The first blog in Mark’s series was “Demystifying IPv6”.

townsley

Three years ago, I organized a conference in Paris where I thought it would be fascinating to bring together the original designers of IPv6 alongside the engineers who were finally deploying it at scale more than a decade later. During this discussion, Steve Deering, one of the “fathers” of IPv6 in the 1990s, was asked one of the most common questions about IPv6: Why wasn’t it designed for backward compatibility with IPv4? After all, wouldn’t it be easier to make the transition if the two versions could transparently coexist? Steve answered that the problem is not that IPv6 wasn’t designed to be backward-compatible—the real problem is that IPv4 wasn’t designed to be forward-compatible.

Steve was making the point that IPv4 was designed with a fixed address space. Given the number of computers connected to the Arpanet throughout the 1970s, this fixed-length address field seemed to be sufficient—at least for that version of IP. IP had been replaced before, and it seemed perfectly reasonable at the time that it might be replaced again. Read More »

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IDC’s Nav Chander Analyzes the Economics of the IPv6 Transition

Everyone is talking about the transition to IPv6 in the run up to the June 6th launch of the IPv6 Internet. Most of the discussion has focused on the technical details of various approaches – 6rd vs. DS-Lite vs. CGNAT for example. However, what we haven’t seen is an effort made to look at the economic impact of the choice between IPv4 extension vs. IPv6 transition and back it up with some real world data. A few months back we asked telecommunications analyst Nav Chander of IDC (pictured right) to evaluate and publish the results of an economic analysis of the IPv6 options. This is a crucial and timely topic because operators are faced with important decisions about which transition technologies to use, when to implement them, and where in the network.

We’re pleased to report that Nav is finished and is ready to reveal the results of his findings. To keep the scope of his analysis within a reasonable boundary, he initially focused on just one scenario: that of a wireline carrier considering the deployment of a Carrier Grade NAT-only implementation (which basically just extends the life of IPv4 with no IPv6), or migrating to IPv6 with a combination of CGNAT (for short term IPv4 extension) and while new customers were deployed with 6rd.

The results of this study are detailed in a new Read More »

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Denver is HOT for IPv6

Unless you have been asleep behind the wheel of your network, you know the IPv6 Internet will go live on June 6th, 2012 and Cisco is taking a leading role.  If you didn’t make it to Paris a few weeks back for v6 World Congress there are two upcoming events in Denver, Colorado where you can learn about deploying IPv6 in your network.

1. Breakfast Session: Making the IPv6 Transition will be held the morning of Tuesday March 20th from 7:30-930 am before the Lightreading Cable Next-Gen Broadband Strategies: Wideband, Wireless, PON & Beyond event. Fred Baker, Cisco Fellow and current Co-chair of the IETF IPv6 Operations Working Group, will be presenting and taking questions at the breakfast. He’ll cover how cable operators can deploy IPv6 on their network and will be available to meet with attendees after the breakfast. Register here to take advantage of this special opportunity. Read More »

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Live from IPv6 World Congress: Norway’s Altibox Discusses IPv6

During our customer reception for the V6 World Congress 2012 we had an opportunity to discuss the impact and opportunity of IPv6 on the industry. Ragnar Anfinsen, Senior Architect CPE of Norway’s Altibox AS was kind enough to share his thoughts with us.

Although they’ve got it running in the lab and their core network, the next step will be to enable IPv6 Read More »

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Touch and Feel IPv6 Wi-Fi!

Despite the “buzz” around IPv6 right now for many customers it’s not easy to actually test drive an IPv6 connection. When we got the opportunity to sponsor the Wi-Fi customer access at the 2012 v6 World Congress, we jumped at it. It became an opportunity to showcase both the simplicity and effectiveness of the Cisco Carrier Grade IPv6 (CGv6) solution. The CGv6 solution is the industry’s only IPv6 transition solution that has been performance tested and validated by a third party, in our case by EANTC.

Wi-Fi is a topic of particular interest to mobile operators Read More »

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