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Quitting the Legacy IP at Cisco Live Milan

It’s that time of the year again -- time for some computer and human networking at Cisco Live Milan! This year I’m taking the unusual and somewhat risky step of blogging about the network infrastructure before the event. This is because we’re going to try something interesting for the networking folks. We are going to try and get rid of the Legacy IP, otherwise known as IPv4.

Before you get too worried -- no, the dual stack network setup does not disappear. Lots of critical parts of our everyday lives still need the old and proven protocol to successfully operate, so removing it would be irresponsible to say the least. But some of you may be interested to try (in a controlled fashion) exactly how strong the ties to the old good legacy. If you are one of these people, this post is for you -- because this blog entry is one of the few places, if not the only one, to find the IPv6-only SSID name and access credentials.

First of all, what’s the big deal with IPv6-only access network, wasn’t this tried before?

Sure, it is not all new. The first time we tried an IPv6-only network was at IPv6 World Congress conference in Paris, early spring 2012. We also had an IPv6-only SSID in one of the Cisco Live US conferences. We discovered that the subset of the operating systems that could successfully operate in this kind of environment was pretty small. But as time passed, evidence suggests the situation was slowly improving. Read More »

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IPv6 is Everywhere at Cisco Live Milan

IPv6 deployment is accelerating at a fast pace. It’s exciting to see that the global IPv6 deployment figures show a continuing upward trend:

IPv6_projection

Cisco has been helping the Industry track this trend with our global deployment statistics portal: http://6lab.cisco.com/stats/. Go to the portal today and you can even follow @cisco6lab on Twitter.

IPv6 Lab

We are also showcasing our IPv6 deployment adoption later this month at the annual Cisco Live Europe event in Milan. We are proud to announce that IPv6 content and demonstrations will be key features at our event from the show room floor to technical sessions, breakouts, panels, labs, and more. Read More »

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Setting up an IPv6 Lab

May 20, 2013 at 4:31 am PST

I’ve blogged (a lot) about planning for the integration of IPv6 into your network, and I even threw in some thoughts about how to go about doing the integration.  Some of the procedures discussed in earlier posts included:

Equally important is the task of setting up a lab and (in our next post) developing a test plan. Read More »

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Cisco Opens Up EIGRP

What’s new and exciting with EIGRP (Enhanced Interior Gateway Routing Protocol)? Actually, lots…  First a bit a background on EIGRP.

EIGRP is an advanced distance vector routing protocol used extensively by enterprise customers.  It is very popular because it is simple to deploy and support. Some major attributes are:

  • EIGRP does not mandate many network design requirements and is therefore perceived as “forgiving” and “flexible”.  For example, EIGRP does not require support for multiple routing sub-domains or Areas.
  • While route summarization is a recommended best practice to minimize route table size, it is optional with EIGRP.
  • EIGRP can scale to support thousands of routers in a Hub and Spoke configuration.  The Hub and Spoke design is especially popular in WAN networks.

For additional information on EIGRP, please click here.  There is also a great BLOG that compares EIGRP and OSPF that I think you will find informative and is posted here.

While EIGRP has a large customer following, some customers have hesitated because of concerns of EIGRP being “proprietary”, which would prevent them from multi-vendor network support.  In some cases this has caused customers to design their networks to limit usage of EIGRP, even though they would like to deploy it ubiquitously.  One result has been non-optimal network design and traffic flow, resulting from multiple IGP (Interior Gateway Protocol) redistribution points.

That brings me back to what is new and exciting with EIGRP. Read More »

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North American IPv6 Summit: My Critical Takeaways for the Enterprise Customer

April 16, 2012 at 1:44 pm PST

The 2012 North American IPv6 Summit was held in Denver, Colorado on April 9-12, 2012.  As usual, it was an excellent conference with the largest attendance of any IPv6 event in North America this year.  There were many excellent speakers who gave timely talks on the state of IPv6 deployment, gaps in the overall education within the end-user base as well as advances and limitations in vendor support.

I gave a keynote talk on “Enterprise Internet Edge Design for IPv6″ and afterwards I was approached by several enterprise customers who stated that they had great success using the Cisco Validated Design (CVD) options defined in our Deploying IPv6 in the Internet Edge CVD.  This is great to hear but our work is not done yet.  We still need to help customers understand the significance of deploying IPv6 in not just the network but throughout the enterprise.  This is most evident in the lack of documentation by commercial off the shelf (COTS) application vendors who need to do a better job of helping customers understand the support for IPv6.

Read More »

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