Kernel of Truth season 2 episode 3: Storage solutions

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You asked for it, we listened, and now we’re delivering! This episode, host Brian calls on Pete Lumbis and special guest David Illes from Mellanox to answer a question we got on our community Slack channel: “What are middle-tier customers doing for storage of Cumulus enabled solutions?” David and Pete share not only what’s changing for middle-tier customers but also tackle the topic of storage solutions in general. What sort of things are we seeing as customers migrate to Ethernet storage? Listen and find out.

Guest Bios

Brian O’Sullivan: Brian currently heads Product Management for Cumulus Linux. For 15 or so years he’s held software Product Management positions at Juniper Networks as well as other smaller companies. Once he saw the change that was happening in the networking space, he decided to join Cumulus Networks to be a part of the open networking innovation. When not working, Brian is a voracious reader and has held a variety of jobs, including bartending in three countries and working as an extra in a German soap opera. You can find him Continue reading

Bridging the Gap

Mike Bushong and Denise Donohue join Eyvonne, Jordan, and I to discuss the gap between network engineering and “the business,” and give us some thoughts on bridging it.

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

BrandPost: Simplifying Operations: Managing Edge Data Centers

IT professionals have been honing their data center management expertise for decades. However, migrating these best practices to an edge computing environment can be challenging.That’s because many workers located in edge environments, such as retail store clerks, lack the necessary data center expertise to ensure edge sites are properly maintained. Complicating matters is the fact that edge data centers can be expensive and complex to run.Clearly, organizations need a new way forward. Fortunately, cloud-based platforms are designed for the edge, and can simplify remote monitoring and management. Here’s what every business should look for in a solution:To read this article in full, please click here

Employee resource groups aren’t the answer, but they’re a first step

Why employee resource groups are important for building a great company culture but they're not enough.

Employee resource groups aren't the answer, but they're a first step

Diversity and inclusion is a process. To achieve diversity and inclusion, it’s not enough to hire diverse candidates. Once hired, we must be welcomed by a safe and belonging culture, and our diverse perspectives must be honored by our coworkers.

Too many times we are approached by well-meaning companies eager to hire diverse candidates, only to look behind the curtain and discover a company culture where we will not feel safe to be ourselves, and where our perspectives will be ignored. Why would we choose to stay in such an environment? These are the companies where diverse employees leave just as quickly as they join.

Employee Resource Groups (ERGs) are an essential part of diversity and inclusion, especially as companies grow larger. Before being heard, or trying to change someone's mind, you need to feel safe.

ERGs serve as a safe haven for those with perspectives and experiences that are "diverse" compared to the company as a whole. They are a place to share stories, particular plights, and are a source of stress relief. A place where we can safely show up fully as Continue reading

Off the Cuff – NFD20 Wrap Up

Last month, Networking Field Day 20 happened in Silicon Valley and our very own Jordan Martin attended the event as a delegate. In this Off the Cuff episode of Network Collective, we sit down with some of the other delegates at NFD20 and talk about our impressions of the event’s general themes and presentations.

The vendors who presented at the event were:

To find out more about Networking Field Day and the other great Field Day events, head on over to https://techfieldday.com

Richard McIntosh
Guest
Drew Conry-Murray
Guest
Brian Gleason
Guest
Mario Gingras
Guest
Nick Shoemaker
Guest
Jordan Martin
Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post Off the Cuff – NFD20 Wrap Up appeared first on Network Collective.

Data center giants announce new high-speed interconnect

A group of big names in the data center space have linked arms to develop yet another high-speed interconnect, this one designed to connect processor chips.It's called Compute Express Link, or CXL, which is aimed at plugging data-center CPUs into accelerator chips. Members of the alliance that developed the spec are Intel, Microsoft, Google, Facebook, HPE, Cisco, and Dell-EMC, plus Huawei and Alibaba.[ Learn who's developing quantum computers. ] Where are IBM, AMD, Nvidia, Xilinx, or any of the ARM server vendors such as Marvell/Cavium? They have their own PCIe-nased spec, called CCIX. The group consists of AMD, Arm, Mellanox, Qualcomm, Xilinx, and Huawei.To read this article in full, please click here

Data center giants announce new high-speed interconnect

A group of big names in the data center space have linked arms to develop yet another high-speed interconnect, this one designed to connect processor chips.It's called Compute Express Link, or CXL, which is aimed at plugging data-center CPUs into accelerator chips. Members of the alliance that developed the spec are Intel, Microsoft, Google, Facebook, HPE, Cisco, and Dell-EMC, plus Huawei and Alibaba.[ Learn who's developing quantum computers. ] Where are IBM, AMD, Nvidia, Xilinx, or any of the ARM server vendors such as Marvell/Cavium? They have their own PCIe-nased spec, called CCIX. The group consists of AMD, Arm, Mellanox, Qualcomm, Xilinx, and Huawei.To read this article in full, please click here

Celebrating the 30th Anniversary of the World Wide Web

http://line-mode.cern.ch/www/hypertext/WWW/TheProject.html

Back around 1991, I was traveling throughout the eastern USA teaching an “Introduction to the Internet” course I had written. The students were mainly from telecom, financial, and software companies wanting to know what this Internet thing was all about. I taught about IP addresses and DNS, using email, sending files with FTP,  using archie and veronica to find info, engaging in USENET discussions, and using Gopher to explore “gopherspace”.

At the end of the course, one of the final sections was on “emerging technologies”. And there, nestled in with HyTelnet and WAIS, was one single page about this new service called the “World-Wide Web”.

And all the page really said was: telnet to info.cern.ch, login as “www”, and start pressing numbers to follow links on the screen.


That was it! (and you can still experience that site today)

We had no idea in those very early days that what we were witnessing was the birth of a service that would come to create so much of the communication across the Internet.

In only a few short years, of course, I was teaching new courses on “Weaving the Web: Creating HTML Documents” and Continue reading

Split Tunneling with vpnc

vpnc is a fairly well-known VPN connectivity package available for most Linux distributions. Although the vpnc web site describes it as a client for the Cisco VPN Concentrator, it works with a wide variety of IPSec VPN solutions. I’m using it to connect to a Palo Alto Networks-based solution, for example. In this post, I’d like to share how to set up split tunneling for vpnc.

Split tunneling, as explained in this Wikipedia article, allows remote users to access corporate resources over the VPN while still accessing non-corporate resources directly (as opposed to having all traffic routed across the VPN connection). Among other things, split tunneling allows users to access things on their home LAN—like printers—while still having access to corporate resources. For users who work 100% remotely, this can make daily operations much easier.

vpnc does support split tunneling, but setting it up doesn’t seem to be very well documented. I’m publishing this post in an effort to help spread infomation on how it can be done.

First, go ahead and create a configuration file for vpnc. For example, here’s a fictional configuration file:

IPSec gateway vpn.company.com
IPSec ID VPNGroup
IPSec secret donttellanyone
Xauth username bobsmith

Continue reading

How to shop for CDN services

Content delivery networks have been around for more than a decade, but many enterprises are taking a new look at the perks and specialization that today’s CDN services have to offer.Why the renewed interest? The cloud-first movement, all-things-video, IoT and edge computing are all bringing sexy back to CDNs. The content delivery network market was valued at $7.3 billion in 2017 and is expected to reach $29.5 billion by 2023, a compound annual growth rate of 26 percent, according to ResearchAndMarkets.com.To read this article in full, please click here

Use Network Automation to Detect Software Bugs

This blog post was initially sent to subscribers of my SDN and Network Automation mailing list. Subscribe here.

Here’s a question I got from one of the attendees of my network automation online course:

We had a situation where HSRP was configured on two devices and then a second change was made to use a different group ID. The HRSP mac address got "corrupted" into one of devices and according to the vendor FIB was in an inconsistent state. I know this may be vendor specific but was wondering if there is any toolkit available with validation procedures to check if FIB is consistent after implementing L3 changes.

The problem is so specific (after all, he’s fighting a specific bug) that I wouldn’t expect to find a generic tool out there that would solve it.

Read more ...

Happy Birthday to the World Wide Web!

Happy Birthday to the World Wide Web!
Happy Birthday to the World Wide Web!

Today, March 12th 2019, marks the 30th birthday of the World Wide Web! Cloudflare is helping to celebrate in coordination with the Web Foundation, as part of a 30 hour commemoration of the many ways in which the Web has changed our lives. As we post this blog, Sir Tim Berners Lee is kicking off his journey of the web at CERN, where he wrote the first web browser.

The Web Foundation (@webfoundation) is organizing a Twitter timeline of the web, where each hour corresponds to a year starting now with 1989 at 00:00PT/ 08:00 CET. We (@cloudflare) will be tweeting out milestones in our history and the web’s history, as well as some fun infographics. We hope you will follow the journey on Twitter and contribute your own memories and thoughts to the timeline by tweeting and using #Web30 #ForTheWeb. Celebrate with us and support the Web!

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