Welcome!

Rethinking the Network

Michael Bushong

Subscribe to Michael Bushong: eMailAlertsEmail Alerts
Get Michael Bushong via: homepageHomepage mobileMobile rssRSS facebookFacebook twitterTwitter linkedinLinkedIn


Top Stories by Michael Bushong

A little while ago I wrote about the differences between routing and switching, or probably more the difference between ethernet and IP forwarding. The focus of that article was very much on the differences between the two from a forwarding hardware perspective. This article last week from Brent Salisbury triggered a bunch of additional thoughts around scale and size. As some sense of disclosure, in my previous job at Nortel/Avaya I was part of the team that pushed Shortest Path Bridging (SPB) spearheaded by Paul Unbehagen. I am a fan of SPB, I believe it is an extremely well thought out mechanism to provide network based virtualized ethernet networks with many real life practical roots in the learnings from MPLS and early more static solutions like PBB and PBT. One of the questions I have been asked many times with respect to SPB is: "how big can I scale my SPB m... (more)

What Is Application-Centric Infrastructure?

With the launch of Cisco's software-defined networking startup Insieme expected tomorrow, our industry is about to hear a lot about "application-centric" everything. So what does "application-centric infrastructure" mean? First, some basics: Networking is about connecting computing devices and systems so they can share data. Networking infrastructures are built with a combination of hardware such as gateways, routers, and switches that manage the movement of the data as well as software applications that enable you to do things like access the Internet and send email. As you co... (more)

Networking Strategy: Innovation and Adoption

When we think about what’s next, our frame of reference is almost universally anchored to what we are doing now. We look at how things are, and then we aim our sights forward. In some cases, we might make incremental moves ahead; in other cases, maybe we look for improvement by orders of magnitude. But regardless of how far forward we reach, our starting point is where we are grounded today. This creates an interesting dilemma in technology generally, and in networking especially. Capabilities-driven Networking is a capabilities-driven industry. We are constantly expanding what... (more)

Plexxi Pulse – Happy New Year

We hope you have been enjoying the holidays and want to wish everyone a happy new year! We are excited for the opportunities 2014 will bring and we will continue to share the latest news on our blog. Our video of the week explains how the Pod Switch Interconnect is at the heart of the Plexxi pod architecture because it allows multiple switches to connect to a single pod. Dan Backman explains how these pods are strung together to form larger topologies. Here is the video of the week and a few of my reads in the Plexxi Pulse – enjoy!     SDN Market Predictions for New Year: NFV... (more)

Open Source as the Future of IT

Open source is playing an increasingly important role in IT infrastructure generally. Certainly, the role of open source in the compute space is well understood, and networking has been making its own migration towards open source with the OpenDaylight movement. But is open source a natural evolutionary path for all IT disciplines, or are there certain characteristics that make some areas more ripe for open source than others? When we think about networking as an industry, we tend to compare its progress to the evolutionary track taken by the compute world. The base assumption h... (more)