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Category Archives for "Networking"

Why 802.11ax is the next big thing in Wi-Fi

I know, I know, I’ve heard it before. A new technology comes along, and it promises to be the next big thing. Consumers and businesses buy it, and what happens? It fails to live up to the hype. In my opinion, almost every iPhone release over the past five years has been that way. Sure there were some cool new features, but overall it’s not something I’d say was game changing. One technology that does promise to live up to the hype is 802.11ax, the next standard for wireless LANs. I say that because this next generation of Wi-Fi was engineered for the world we live in where everything is connected and there’s an assumption that upload and download traffic will be equivalent. Previous generations of Wi-Fi assumed more casual use and that there would be far more downloading of information than uploading. To read this article in full, please click here

Intel’s FPGA strategy comes into focus

Three years after acquiring FPGA maker Altera for $16.7 billion, Intel’s strategy and positioning is coming into focus with the disclosure of its plans for Stratix 10 hardware and accompanying application development and acceleration stack.Altera made two FPGAs, chips that are reprogrammable to do different functions. The Arria 10, which is the low-end card, and Stratix 10, the high-performance card. The two are aimed at different target markets and use cases.“Each has its own tier, its own sweet spot for features and form factor,” said Sabrina Gomez, director of product marketing at Intel’s Programmable Solutions Group. “Arria is smaller, fits in 1U form factors. Stratix is dual PCI card. The power draw for Arria is 75 watts, while it’s 225 watts for Stratix.”To read this article in full, please click here

Intel’s FPGA strategy comes into focus

Three years after acquiring FPGA maker Altera for $16.7 billion, Intel’s strategy and positioning is coming into focus with the disclosure of its plans for Stratix 10 hardware and accompanying application development and acceleration stack.Altera made two FPGAs, chips that are reprogrammable to do different functions. The Arria 10, which is the low-end card, and Stratix 10, the high-performance card. The two are aimed at different target markets and use cases.“Each has its own tier, its own sweet spot for features and form factor,” said Sabrina Gomez, director of product marketing at Intel’s Programmable Solutions Group. “Arria is smaller, fits in 1U form factors. Stratix is dual PCI card. The power draw for Arria is 75 watts, while it’s 225 watts for Stratix.”To read this article in full, please click here

Wi-Fi 6 is coming to a router near you

Just when we were all getting used to the IEEE 802.11 Wi-Fi nomenclature that differentiates between generations of the technology, the industry’s Wi-Fi Alliance has gone and made it simpler and more digestible for the user on the street.As a result, starting this month what we know as 802.11ax is officially called Wi-Fi 6.[ Find out how 5G wireless could change networking as we know it and how to deal with networking IoT. | Get regularly scheduled insights by signing up for Network World newsletters. ] The new, vastly simplified system also means that 802.11ac is now Wi-Fi 5, and 802.11n is Wi-Fi 4. The idea, according to the Wi-Fi Alliance, is to make matching endpoint and router capabilities a simpler matter for the rank-and-file user of Wi-Fi technology.To read this article in full, please click here

Feedback: Ansible for Networking Engineers

One of my subscribers sent me a nice email describing his struggles to master Ansible:

Some time ago I started to hear about Ansible as the new power tool for network engineer, my first reaction was “What the hell is this?” I searched the web and found many blah blahs about it… until I landed on your pages.

He found Ansible for Networking Engineers material sufficient to start an automation project:

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Routing Security boosted by major network operators

There have been some important developments towards improving routing security over the past few weeks, with announcements at NLNOG and AusNOG, as well as from Cloudflare about commitments to validate IP prefixes and reduce route leaks and hijacks. This supports the work we’ve being doing with the MANRS initiative to raise awareness of this issue, and to persuade network operators to take collaborative responsibility for this critical aspect of the Internet.

Cloudflare to deploy RPKI

Cloudflare has been a long-time advocate of routing security, and during their recent Crypto Week, they announced that they’ll be deploying RPKI on their networks. Resource Public Key Infrastructure (RPKI) allows IP address prefixes and AS numbers to be cryptographically verified (using Route Origin Authorization), and therefore provides some assertion that the holders of these have the right to announce them. The use of RPKI is included as one of the four MANRS actions “Global Validation – facilitating validation of routing information on global scale” which includes the creation of ROAs and the maintenance of accurate data in Internet Routing Registries (IRRs).

Cloudflare also announced GoRTR, which is an open-source implementation of the RPKI to Router (RTR) protocol (see RFC 6810). This is Continue reading

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