Most fundamental network design attribute should be simplicity. When you have a simple network, you can have secure, flexible , scalable, understandable , in fact all important design requirements can be achieved. But having simplicity is easy to say, hard to achieve. On the other hand, some amount of complexity is required, as […]
The post Are you an Intelligent fool ? appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
Words like ping have a meaning all their own in networking.
Data center networking is moving away from ‘Ciscos of the world,’ Big Switch says.
"There is a whole shift that is happening moving to automated networking."
Over the weekend, I ordered an Apple Airport Extreme wireless router from n1wireless.com. The price was great, and their site stated they had 90 in stock. This afternoon, I received from them via e-mail one of the oldest sales tricks there is–the bait and switch.
With the bait and switch technique, the victim is lured by a low price on a desirable product (the bait). The vendor of the low-priced product claims to be out of the bait, offering a different product at a higher price (the switch). N1Wireless suggested that instead of what I had ordered, I spend $50 more on an Apple Time Capsule product.
I applaud n1wireless.com for their bold ethical choices, but respectfully decline the opportunity to spend more money on a product I don’t want.
The lesson is not a new one. If something is too good to be true, then it probably is. Really, I should know better. I had a similar experience with a different vendor several months back selling a TV at a surprisingly low price. After two weeks of waiting for the order to ship, I had to call support to find out that the TV was on backorder, Continue reading
Over the weekend, I ordered an Apple Airport Extreme wireless router from n1wireless.com. The price was great, and their site stated they had 90 in stock. This afternoon, I received from them via e-mail one of the oldest sales tricks there is–the bait and switch.
With the bait and switch technique, the victim is lured by a low price on a desirable product (the bait). The vendor of the low-priced product claims to be out of the bait, offering a different product at a higher price (the switch). N1Wireless suggested that instead of what I had ordered, I spend $50 more on an Apple Time Capsule product.
I applaud n1wireless.com for their bold ethical choices, but respectfully decline the opportunity to spend more money on a product I don’t want.
The lesson is not a new one. If something is too good to be true, then it probably is. Really, I should know better. I had a similar experience with a different vendor several months back selling a TV at a surprisingly low price. After two weeks of waiting for the order to ship, I had to call support to find out that the TV was on backorder, Continue reading
The post Worth Reading: Erasing Tech Debt appeared first on rule 11 reader.
Tech companies don't contribute to society
The post Response: Tech Giants: Above the Law appeared first on EtherealMind.
We have done a few talks in the past on different features of containerd, how it was designed, and some of the problems that we have fixed along the way. Containerd is used by Docker, Kubernetes CRI, and a few other projects but this is a post for people who may not know what containerd actually does within these platforms. I would like to do more posts on the featureset and design of containerd in the future but for now, we will start with the basics.
I think the container ecosystem can be confusing at times. Especially with the terminology that we use. Whats this? A runtime. And this? A runtime… containerd as the name implies, not contain nerd as some would like to troll me with, is a container daemon. It was originally built as an integration point for OCI runtimes like runc but over the past six months it has added a lot of functionality to bring it up to par with the needs of modern container platforms like Docker and Kubernetes.
Since there is no such thing as Linux containers in the kernelspace, containers are various kernel features tied together, when you are building a large Continue reading
AT&T's Glenn Lurie retires; Gregory Lee becomes president of Nokia Technologies
Similar AWS and Google outages show how cloud configuration errors can cripple business.
Looking at the capabilities of any given protocol running in our networks today, it certainly seems there are few use cases left the protocol cannot support. In fact, modern interior gateway protocols have become so capable that it almost seems like we only need one to support everything. This is not reality, of course—there are many places where a specialized protocol would do better than a general purpose one, and there are still many use cases current protocols cannot support. One such use case, for OSPF, illustrated below, uses a two part metric to solve a very specific problem, as illustrated below.
On the left side of this diagram you can see the “typical” broadcast network. Originally common in what used to be called local area networks, these sorts of broadcast segments are actually more common on metro edges and wireless networks today than in a campus or data center. Anyone familiar with OSPF should already know what the problem is with this sort of configuration—if you build an adjacency between every pair of routers illustrated here, you end up with just too much state. For instance—