The rise of software licensing in networking changes some of my assumptions about the 5 year cost of ownership of products. Roughly, lets assume that you […]
Smart Televisions are tracking everything you do and sending that data to unknown services: The amount of data this thing collects is staggering. It logs […]
LEDE: One of the hardest parts of DevOps movement is explaining the unique value to IT Leadership in conventional organisations that rely on ITIL principles. I’m having success by framing the debate in terms of over-capitalised on assets and under-invested in human infrastructure.
A blog post on the Cisco’s website announces Cisco joins Open Compute Project as a Gold member: To that list, I am pleased to announce […]
This is my current goto code snippet for using the BASH command line to perform a ping sweep through an IPv4 subnet. for i in `seq […]
EMC announced during it’s quarterly results that it was taking a larger position in VCE. VCE was always an EMC asset, co-operation with partners Cisco, […]
I’ve been researching four different and distinct types of networking in the last few weeks. I’m finding that the cognition required to jump between technologies is making my head hurt. Here is a summary of four technology areas that interest me this week. Optical Networking As part of research project I have been getting deep […]
Been researching HTTP2 protocol on the basis that is will, more or less, be the dominant protocol on the Internet and everywhere else. Aside from the sense of excitement I get from looking at solving old problems, HTTP2 is a huge change for networking and this site has the best explanation I’ve found so far. Check […]
Recently I’ve been on a search for a ‘better’ font to use in terminals. In an unrelated coincidence, I learned about anti-aliasing, I still don’t understand it but it makes a difference.
On Cisco IOS, this is a very useful command “show tcp vty xx” to show TCP statistics of the VTY session. If you think your terminal is running slow because of packet loss or delay then this command will provide visibility. The other cause is the CPU/Memory running slow if you don’t see any errors on the TCP (as you can see below).
Very, very funny quote in the Pew Research Report: How could people benefit from a gigabit network? One expert in this study, David Weinberger, a senior researcher at Harvard’s Berkman Center for Internet & Society, predicted, “There will be full, always-on, 360-degree environmental awareness, a semantic overlay on the real world, and full-presence massive open […]
I use the term “invariant” quite regularly when designing networks. It sounds fancy.
Following the breakups of IBM and HP as they divest the low profit divisions and EMC under a some pressure to disband the Federation, the same question is often raised about Cisco but what could go ?
In recent network designs, the big, hot and heavy chassis switch has become the last option for a number of reasons. Switch Performance and Capacity. Port Density In the past, the most common decision for buying a chassis has been port density. A chassis backplane provides a high speed connection for the line cards to […]
Blessay (Deep Content)
LEDE: One of the hardest parts of DevOps movement is explaining the unique value to IT Leadership in conventional organisations that rely on ITIL principles. I'm having success by framing the debate in terms of over-capitalised on assets and under-invested in human infrastructure. Three … [Read More...]
This article continues the discussion from Human Infrastructure Poverty in the Enterprise - Part 1 Replacing CapEx with Open Source Enterprises have been reluctant to embrace open source and often state that training, expertise and support for open source are a major risk factor. Yet there are … [Read More...]
Is Enterprise IT starving its operational process by reducing headcount and overcapitalising on assets ? If so, what arguments can we make for or against this idea ? CapEx Rich but Living in OpEx Poverty Is it a misconception that heavy capital purchases can reduce operational costs ? The last 20 … [Read More...]
The Network Break is a new Packet Pushers podcast where we discuss "state of the business" in networking and enterprise infrastructure. Andrew Conry-Murray and I discuss vendors moves and news, product and ploys, analysis on product and positioning, and look at the business of networking in a short … [Read More...]
Big Switch Networks (BSN) launches Version 4.0 of Big Cloud Fabric for hardware-centric SDN data centre fabric. The Data Centre Fabric solution clearly shows the maturity gained from 5 years of shipping products while adding innovation in switch hardware through Switch Light operating system. At the … [Read More...]
When planning network architecture for the next few years, I believe that it is important to comprehend that the network is just a one part of an overall system. The ITIL foolishness that drive most IT infrastructure processes prevents clear systemic thinking and I'm often having to explain how the … [Read More...]
The future of private infrastructure ownership is moving to a new model combines the old with the new that I describe as “dolls and babies” where the major transformation in infrastructure ownership is the transition from having babies to owning dolls. Infrastructure as Babies Enterprises buy … [Read More...]
In discussions with a stealthy networking startup today, we were discussing how their overlay network technology for an SDN-enabled WAN was able to to detect network blackouts and brownouts in the physical network. Their answer was to run Bi-directional Forwarding Detection (BFD) in the overlay … [Read More...]
Can the Internet be the “Cloud Network” ? If so, when could the transition happen (if it hasn’t started already) ? Supposition/Hypothesis As a technology, the Internet has strikingly similar properties to sharing Compute and Storage as ‘Cloud’. A large pool of resource that can be used or shared … [Read More...]