Arista EOS Gets a Subscription Pricing Option
Smaller cloud players want to pay less up-front for Arista's software.
Thought for The Day: NetBIOS over IPX
I found a capture file from 2002. I must have been troubleshooting name resolution of NetBIOS over IPX for print servers because I am only capturing broadcasts on the Ethernet segment. And Wireshark can still open a data format from 15 years ago and render the data. I surely do not miss these days. […]
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Video: Automating Network Security
The video of my Automating Network Security talk @ Troopers 15 has been published on YouTube. They used fixed camera and the slides are a bit hard to read; you’ll find a better copy of the slide deck on my content web site.
For a bit of fun, turn on closed captions (CC) – public cloud became public lout.
Inaugural Customer Symposium Highlighted Fast Move to SDN/NFV
Inaugural Customer Symposium Highlighted Fast Move to SDN/NFV
by Andy McFarland, VP of Customer Care - March 31, 2015
Our inaugural symposium featured registrants from 5 continents.
In Paris a few weeks ago, Packet Design hosted our first ever Customer Symposium to discuss industry trends and share our latest product developments. Partners and customers joined us from four hemispheres and five continents (with a handful who travelled over 10,000 km). In addition to a showcase of our SDN product (due out later this year) and a sneak preview of our 15.1 release (stay tuned for more on this), the highlight was a presentation by Heavy Reading industry analyst Caroline Chappell. Here’s a quick summary of her talk.
Chappell discussed SDN and NFV adoption trends and shared deployment strategies being used by leading communication service providers. She also outlined the new architectures and management systems needed to successfully operate SDN and NFV-based networks.
One quote that stood out was her contention that, in her more than 25 years of industry experience, “I have never seen the telco industry transition so quickly." She said the timeline for widespread SDN adoption has been pared down from 10 to five years. Continue reading
How to update Docker on CentOS 7
I recently noticed that the Kubernetes guys are moving their container images from the Docker hub registry to their own repository…
A quick look tells me that Google now has it’s own image repository (gcr.io) so it seems to make sense that the Kubernetes team would be using that rather than the Docker hub registry. That being said, I though all I’d have to do was update my YAML files to point to the new location. Unfortunately, that wasn’t the case. After pushing the controller definitions to the Kubernetes cluster it became apparent that the containers were stuck in a pending state. When I logged into one of the hosts and check the Docker logs I saw the issue…
After some digging, I found this…
Since the container image name had a ‘-‘ in it, Docker didn’t know what to do with it. So the fix is to update Docker to the latest stable code which happens to be version 1.5. In my case, the repositories I was using with YUM didn’t have 1.5 so we need to pull the latest binaries from Docker and use those. To update, Continue reading
Three Tips for Technical Blogging
From time to time, I’m asked by new or potential technical bloggers for advice on how to get into writing, or how to overcome some kind of mental reservation that he/she may have. It’s actually somewhat ironic - I still suffer from many of the same issues that I suffered from back before Keeping It Classless existed. I have been having some serious "Newbie Blogger" issues last few weeks. Ironically, I feel compelled to write about them.Three Tips for Technical Blogging
From time to time, I’m asked by new or potential technical bloggers for advice on how to get into writing, or how to overcome some kind of mental reservation that he/she may have. It’s actually somewhat ironic - I still suffer from many of the same issues that I suffered from back before Keeping It Classless existed. I have been having some serious "Newbie Blogger" issues last few weeks. Ironically, I feel compelled to write about them.Software Stack Choices in Cloud Networking
The networking industry is changing rapidly with demand for more dynamic control of big data, and scale-out cloud applications. The inevitable shift to software-defined workloads and workflows is crystal clear. This calls for more “disaggregation” of software models for the network stack.
Should networking move to a more open standards-based approach or continue with legacy stacks? The answer is defined by considering the following three options for networking software stacks, and the actual choice depends on the factors as shown below in Figure 1.
1. Classic OS: The established network vendors tend to develop multi-million lines of complex software code with enterprise or service provider class features for LAN or WAN. This closed monolithic “Blob-OS” model can be based on modified and proprietary versions of a BSD or Linux Kernel. Traditional enterprise support is the hallmark of this model, but innovation is rarely evident. Claims of programmability usually include band-aid APIs, or guest virtual machine access. The classic OS addresses mature markets akin to a mainframe usually for customers with siloed IT stacks that support legacy applications.
2. Cloud OS: At Arista, our software engineers build based on an open Linux Kernel, providing programmable capabilities that legacy switch-based Blob-OSs do Continue reading
Akanda Hires OpenStack Board Director Sean Roberts
The networking startup, spun out of DreamHost, gets some OpenStack clout.
Is Juniper The Next Cisco?
Juniper flexed its muscles at the Innovation Showcase held in March 2015. What did they talk about? What does it mean for their customers going forward? I perform an introductory analysis.Aryaka Raises $16M More for the Software-Defined WAN
Startup has raised nearly $100M in the name of networking-as-a-service and the software-defined WAN.