Jeff Doyle Joins Synergy Research

I’ll get back to the discussion of quantifying intangibles in a couple of days, but I wanted to let you know that I have joined Synergy Research as a Vice President of Research, focused on IP Infrastructure and Metro / Carrier...

Taking the Art Out of Networking

It’s been a long tradition around our house that I cook the Christmas dinner. I enjoy cooking but don’t get the time to do it as often as I would like; my wife does the great majority of day-to-day cooking, so she enjoys not having...

2008 IPv4/IPv6 Update

2008 was sort of a milestone year for IPv6. Foremost there was the much-touted US OMB Mandate which everyone got excited about back about 2005: By June of this year all federal agencies’  “infrastructure  (network backbones) must be...

Taking the Android Plunge

I picked up a G1 yesterday. It was a big step for me, because I’ve never really wanted a mobile phone that does more than make phone calls (and text messaging, since my teenagers seem to have lost the ability to communicate by any...

Understanding 4-Byte Autonomous System Numbers

For all the harping I do on this blog about IPv4 address depletion and the need to prepare yourselves for IPv6, there is another number resource that is also being quickly depleted, and that I haven’t written about before: the 2-byte...

Adventures in IPv6 Web Hosting

My last post talked about the need for enterprise network operators, even if they think they will not need IPv6 for their internal networks in the foreseeable future, to take into account their public-facing servers. Although there...

IPv6 in the Enterprise: Why You Should Care

If you have followed this blog for very long you know that I post pretty regularly (far too regularly, some might say) on the fast-approaching depletion of the remaining pool of public IPv4 addresses. If you haven’t followed this...

High Availability Does Not Always Mean High Cost

“High availability” has been a technical and marketing buzzword for a number of years, and lately infrastructure equipment vendors have made “HA” a feature set. In that regard HA has come to mean a combination of hardware and...

The Internet and Obama

In the previous post I discussed how the Internet influenced the American presidential election. (Okay, okay, how in my opinion it influenced the election.) In this post, I'd like to flip the discussion to how the Internet might be...

Obama and the Internet

I debated whether to write this post at all. Doing so means letting some of my political views show, and I wasn’t sure whether that would be appropriate for this blog. But in the long run it’s really about the industry we all work in...

IPv6 Is Not a "Special Feature"

I wrote in the previous post that many network executives resist IPv6 deployment because they cannot find a means to make it profitable. This is a misguided viewpoint, because IPv6 is an infrastructure issue, not an applications...

IPv6: It's An Infrastructure Thing

In the years of trying to convince network operators and executives of the urgency behind getting started on an IPv6 implementation plan, those resistant to the idea usually give me one or more of the following:·      There are no...

In Memory of the Guy That Got Me Started

My father died a couple of weeks ago. Although he was not suffering from a serious illness, it was not unexpected. He was 83, and for the past two years we had watched his body slowly running down. He knew this was coming.On his last...

Using JUNOS Macros

The posts I’ve done about JUNOS so far all have to do with a single theme: Reducing operational risk. The features I like about JUNOS are the features that help me avoid screwing up a configuration. As I’ve said in past posts and...

Scripting and Customization in JUNOS

Previous posts have shown you how to maneuver around within the JUNOS configuration hierarchy, and how it checks for correct syntax every time you hit the space bar as you're entering a configuration line.But there are times when you...

Getting help in JUNOS

I discussed in the previous post how candidate configurations, explicit commits, and rollbacks greatly increase the reliability of configuration changes in JUNOS and reduce the risk of configuration mistakes. Heaven knows if there is...

Managing a JUNOS Configuration

One of my longtime gripes about IOS is that when you type a new statement to the CLI and hit return, the statement immediately becomes active on the router. For someone as mistake-prone as me, this is a big risk. And given that the...

Navigating a JUNOS Configuration

pre {background-color:transparent;border:none;}In the previous post on JUNOS I gave you a brief overview of the software architecture, with a particular emphasis on modularity. In this post, we'll have a first look at maneuvering...

A Subtle Shift in Thinking About IPv4/IPv6 Coexistence Solutions

Most anyone that considers IPv6 implementation and proposes implementation solutions looks at it in terms of IPv4/IPv6 coexistence. When the IPv6-capable devices in a network are dual stacked, coexistence is relatively simple: The...

The JUNOS Software Architecture

In the previous post I gave you the briefest insight into the JUNOS software architecture by telling you that its kernel is based on FreeBSD. Juniper developers start turning a FreeBSD kernel into a JUNOS kernel by reviewing the...

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