Jim Bailey

AS Technical Leader

Borderless Networks

Jim Bailey, CCIE #5275 (R&S SP ) and CCDE #20090008, is an AS Technical Leader at Cisco Systems with over

20 years of experience in networking. As part of the Central Engineering Architecture and Design Advanced Services team,

he focuses on the architecture, design and implementation of networks for Enterprise, Service Provider and Government

customers. He has focused on IPv6 integration into those networks over the last 8 years.


May 28, 2013


Setting Up an IPv6 Testing Plan

3 min read

In my previous blog, I talked about building out a lab to help with IPv6 integration testing.  It cannot be understated how important it is to test any new feature that is going to be deployed on the network.  This statement is true independent of the feature involved.  In this case, we are talking about […]

May 20, 2013


Setting up an IPv6 Lab

2 min read

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: Assessing the network infrastructure, operating systems and applications in use Assembling a team to handle the integration […]

February 20, 2013


How to Find and Measure IPv6 Traffic on Your Network

My last post was all about finding IPv6 prefixes on the IPv6 Internet. I think the next natural question is “What about IPv6 traffic?” or more specifically, “What about IPv6 traffic on my network?” In this post, I’ll talk about some network tools, or instrumentation, that can be used to find and measure IPv6 traffic […]

December 17, 2012


Where’s My IPv6 Prefix? Part Deux

4 min read

My previous post examined how a regional Provider Independent (PI) prefix is propagated across the Internet.  This post discusses the second aspect of the issue: how does Provider Assigned/Aggregateable (PA) space propagate across the Internet?

December 13, 2012


Where’s My IPv6 Prefix? Part One

5 min read

In a previous blog series about interfacing with your ISP, I mentioned tools that Internet Service Providers (ISPs) have, such as looking glasses and route servers, that can be used to verify their policies.  In this blog post, I want to examine some of those tools, but primarily I want to show how prefixes are […]