As I was writing my blog entry for today, a colleague (Nils Swart) sent me an
email with a 30-page attachment – a handwritten paper penned by the Dutch
computer scientist Edsger Dijkstra (famous for his contributions to
distributed computing, and some algorithms that might be important to you if
you are in the networking business). The paper is a draft of a speech
entitled “On the cruelty of really teaching computer science“.
I have to be honest – when the email came in, I scanned the document and
saw that it was 30 pages long. Having never read this before, my first
reaction was TL;DR. But after a couple of email exchanges on the merits of
the paper, I dug in.
There are two comments that I want to call out in the paper that I think are
particularly apropos to where we are today as an industry. In the second
paragraph on page 1, Dijkstra writes:
“The usual way in w... (more)
There's been a lot of hullaboo in the last few years about the current cycle
of disruption in IT: Public Cloud, Private Cloud, SDN, DevOps,
Everything-as-a-Service… the list goes on and on and every vertical, every
field, and every niche is feeling the churn. Every day there is no shortage
of opinions "for" and "against" something in tech that is emerging, in
decline, or re-emerging. There is one aspect to all of it though that is
largely ignored: "The Short 't'."
Every System in Summary
Figure 1. A summary of any given system.
Let's have a look at Figure 1. It represents a... (more)
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
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)
[This post is intended to examine potential strategic implications. I am not
trying to evaluate products or determine the relative value of competing
John Chambers was quoted in a Barron's blog last week talking about Arista.
The entire article is worth reading (it covers a lot more than just Arista),
but I want to highlight his comments specific to Arista:
When I pose to Chambers that Arista Networks, the Santa Clara, California
startup that is storming the data center with very successful products, is
the “most serious competitor” the company has, he replies “Not ev... (more)
Everyone and their mother does a light blog before the holidays. US
Thanksgiving lends itself well to Thank You's and Turkeys. Here are my top
five of each:
Cisco – A big thank you goes out to Cisco for changing the industry
dialogue to something that puts applications first. You can debate hardware
vs. software, deep integration vs. loose federations, and single-vendor vs.
multi-vendor. But at the end of the day, their ACI launch was about putting
applications first, simplifying edge policy, and orchestrating workload
resources across disparate parts of the infrastructure. Forg... (more)