ONF Debuts Northbound Interfaces for Intent-Based Networking
The intent-based Boulder & Aspen projects are designed to open up networking.
Increased Security Spending: Good Money After Bad?
A couple of recent analyst reports tout significant growth in the information security market. But More security spending on products doesn’t necessarily mean better outcomes for customers.
The post Increased Security Spending: Good Money After Bad? appeared first on Packet Pushers.
Tower 2.3 Has Arrived
We’re happy to announce the release of Ansible Tower 2.3, our console and service that brings control, security, and delegation to your Ansible deployments.
Historically Tower has been installed with a simple setup playbook that you run with the Ansible you already have to download and install Tower. But not everyone has the luxury of access to the internet at all times.
Starting with Tower 2.3, we now offer a bundled installer for Red Hat Enterprise Linux and CentOS systems. This all-in-one installer contains everything you need to get Tower started in one bundle, including bootstrapping of Ansible for you as needed. All you need is a Red Hat or CentOS machine with access to the vendor OS repositories - no other external access required. The playbook installer is still available as well, and Tower is also still available via Vagrant image or AMI if you’d prefer to try it via that method.
As usual, this release of Tower includes a variety of bug fixes as well, including performance improvements around listing jobs and job templates.
For more information on Tower 2.3, check the release notes at: http://docs.ansible.com/ansible-tower/latest/html/installandreference/release_notes.html
To try Ansible Tower 2.3 Continue reading
Citrix Sale Options Would Likely Include Netscaler & GoToMeeting
Citrix is reportedly mulling a selloff of its entire business, or certain assets. Dell is a possible suitor.
Technology Short Take #54
Welcome to Technology Short Take #54! In this episode, I’ve gathered an odd collection of links and articles about key data center technologies. Without further ado, let’s get to the content.
Networking
- Not sure if this link belongs in Networking or in Virtualization, but we’ll stick it here since it talks about VMware NSX. Here’s a three-part series on running VMware NSX on vSphere on AWS via Ravello Systems (part 1, part 2, and part 3). This is a great way to get your feet wet with NSX without having to invest in a home lab.
- This is a bit of an older post, but I really appreciated Bob McCouch’s post on building tools versus “programming.” I think Bob really hit the nail on the head when he said that the real goal is working efficiently with high quality and low error rates. If this means you need to learn to write a script, then so be it. If it means it needs to be manual, then so be it (but please, please, do take the time to document it!).
- Dan Conde of ESG has a write-up on the role of NSX in Continue reading
Last Chance! Maximize Network Programmability with NX-API REST, NX-Toolkit, & NX-API
Join the Cisco DemoFriday on September 25th and learn how you can benefit from network programmability as you transition from legacy systems to open standard interfaces.
How will new memory technologies impact in-memory databases?
This is a guest post by Yiftach Shoolman, Co-founder & CTO of redislabs. Will 3D XPoint change everything? Not as much as you might hope...
Recently, investors, analysts, partners and customers have asked me how the announcement from Intel and Micron about their new 3D XPoint memory technology will affect the in-memory databases market. In these discussions, a common question was “Who needs an in-memory database if all the non in-memory databases will achieve similar performance with 3D XPoint technology?” Well, I think that's a valid question so I've decided to take a moment to describe how we think this technology will influence our market.
First, a little background...
The motivation of Intel and Micron is clear -- DRAM is expensive and hasn’t changed much during the last few years (as shown below). In addition, there are currently only three major makers of DRAM on the planet (Samsung Electronics, Micron and SK Hynix), which means that the competition between them is not as cutthroat as it used to be between four and five major manufacturers several years ago.
DRAM Price Trends
CloudFlare Raises $110M with Promise to Eliminate Lots of Hardware
A five-year-old upstart garners investments from Google, Microsoft, Baidu, and Qualcomm and sets its sights on competing with Amazon Web Services.
Former Gigamon CEO Raises $7M for a Different Type of Security Monitoring
Datiphy watches how data is being used — a managed service that's being turned into a software product for the U.S. market.
Alcatel-Lucent BGP configuration tutorial. Part 2 – BGP policies. Community
In the first part of this BGP tutorial we prepared the ground by configuring eBGP/iBGP peering. We did a good job overall, yet plain BGP peering relationship is useless, the power of BGP in its ability for granular management of multiple routes from multiple sources. And the tools that help BGP to handle this complex task are BGPReaction: Interoperate or Die
Ethan has an excellent post up on Interoperate or Die. Herewith, a few thoughts in response.
From my perspective, the importance of open standards in the world of network engineering can hardly be overstated. As networks become more complicated (or complex, depending on what word you want to use), having consistent interfaces will become increasingly important. Think of the old IP model — every transport runs on top of IP, and IP runs on top of every physical/link layer. Using IP as a “choke point” built a “wasp waist,” a single API everyone on both sides of the narrow point in the protocol layer could talk to.
in recent years, we’ve forgotten the wasp waist. We’ve built everything over HTTP, and everything over Ethernet over IP, and everything over GRE over IP, and… The entire stack, above IP, is a hornet’s nest of convoluted caverns and side halls pointing, apparently, everywhere at once (like the guy from the forest in The Point, above).
If you think of IP as an API (which is really what it is), the point is to have a single layer API between any two interacting systems. This creates a clean interaction surface that helps you to Continue reading
Cisco VIRL: More Than A Certification Study Lab
Cisco's Virtual Internet Routing Lab provides students and experienced networking pros with a tool to build network topologies. Here's what to expect in terms of capabilities and limitations.VSAN: As Always, Latency Is the Real Killer
When I wrote my stretched VSAN post, I thought VSAN uses asynchronous replication across WAN. Duncan Epping quickly pointed out that it uses synchronous replication, and I fixed the blog post.
The “What about latency?” question immediately arose somewhere in my subconscious, but before I could add that thought to the blog post (because travel), Anders Henke wrote a lengthy comment that totally captured what I was thinking, so I’m including it in its entirety:
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