SNMP is still dominant
Sad but true.
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Webinars in June 2020
Here’s the final push before we hit the summer break at the end of June (and recover a bit from the relentless production of new content we had throughout the first half of 2020):
- I finished the Introduction to Containers and Docker update just in time to cover the nuances of Docker Networking before the summer break. The first live session will take place today, the second one on June 11th.
- Later this week (May 28th) we’ll have some fun with routing protocol basics.
- Dinesh Dutt covered Vagrant in his last live session and plans to cover other network simulation tools on June 2nd.
- We did a “should I use VMware NSX or Cisco ACI” webinar a few years ago. In the meantime both vendors launched major new features, so it’s high time for a thorough refresh starting on June 9th.
- Mario Rosi will continue the Cisco ACI Introduction series on June 16th.
- David Barroso described the basics of Nornir in our network automation course. We’ll turn that material into an independent webinar (available with standard ipSpace.net subscription) and David plans to augment it with a deep dive into Nornir internals in a live session on Continue reading
Ruminating on SOS
Many years ago I attended a presentation by Dave Meyers on network complexity—which set off an entire line of thinking about how we build networks that are just too complex. While it might be interesting to dive into our motivations for building networks that are just too complex, I starting thinking about how to classify and understand the complexity I was seeing in all the networks I touched. Of course, my primary interest is in how to build networks that are less complex, rather than just understanding complexity…
This led me to do a lot of reading, write some drafts, and then write a book. During this process, I ended coining what I call the complexity triad—State, Optimization, and Surface. If you read the book on complexity, you can see my views on what the triad consisted of changed through in the writing—I started out with volume (of state), speed (of state), and optimization. Somehow, though, interaction surfaces need to play a role in the complexity puzzle.
First, you create interaction surface when you modularize anything—and you modularize to control state (the scope to set apart failure domains, the speed and volume to enable scaling). Second, adding interaction surfaces Continue reading
The Week in Internet News: Hong Kong Residents Flock to VPNs
Surveillance is coming: Hong Kong residents are rushing to download virtual private network apps after the Chinese government announced it intends to pass a new national security law covering the region, the South China Morning Post reports. Residents are worried that the Chinese government will restrict Internet access and put new surveillance measures in place in the quasi-independent region.
Fastest Internet ever: A team of researchers in Australia has logged data speeds of a blazing 44.2 terabits per second, claiming the fastest Internet speeds ever, the BBC reports. Researchers set the new record speed by using a device that replaces around 80 lasers found in some existing telecom hardware with a single piece of equipment called a “micro-comb.”
AI vs. coronavirus: Chinese ride-hailing provider Didi Chuxing says it will start using artificial intelligence to verify if drivers in its Latin American markets wear masks and disinfect cars to keep riders safe during the coronavirus pandemic, Al Jazeera says. Beginning on May 22, Didi’s drivers in Latin America needed to take a selfie with mask on to pass the AI verification, and starring in June they will need to report their body temperature to the phone app and upload Continue reading
Network Break 285: 37,000 Kilometers Of Undersea Cable Coming To Africa; Cisco Announces ACI 5.0
Lots to cover in this week's Network Break podcast, including a consortium of telcos and Facebook laying new undersea cable in Africa, new features for service providers and enterprises in Cisco's ACI 5.0, why Intel bought Rivet Networks, software and Wi-Fi for contact tracing, AT&T getting called on misleading 5G advertising, and more.
The post Network Break 285: 37,000 Kilometers Of Undersea Cable Coming To Africa; Cisco Announces ACI 5.0 appeared first on Packet Pushers.
Network Break 285: 37,000 Kilometers Of Undersea Cable Coming To Africa; Cisco Announces ACI 5.0
Lots to cover in this week's Network Break podcast, including a consortium of telcos and Facebook laying new undersea cable in Africa, new features for service providers and enterprises in Cisco's ACI 5.0, why Intel bought Rivet Networks, software and Wi-Fi for contact tracing, AT&T getting called on misleading 5G advertising, and more.Juniper Claims Mist Win Rate Against Cisco Tops 80%
Mist serves as the heart of Juniper’s AI-driven enterprise strategy. And Mavis is the brain.
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Tech Bytes: SolarWinds Boosts VoIP Performance, Development Productivity With Silver Peak SD-WAN (Sponsored)
On today’s Tech Bytes we talk with SolarWinds about how the company boosted VoIP performance, improved end user experience, sped up the transfer of massive files, and increased development productivity by deploying SD-WAN EdgeConnect appliances from Silver Peak. Silver Peak is our sponsor.
The post Tech Bytes: SolarWinds Boosts VoIP Performance, Development Productivity With Silver Peak SD-WAN (Sponsored) appeared first on Packet Pushers.
Tech Bytes: SolarWinds Boosts VoIP Performance, Development Productivity With Silver Peak SD-WAN (Sponsored)
On today’s Tech Bytes we talk with SolarWinds about how the company boosted VoIP performance, improved end user experience, sped up the transfer of massive files, and increased development productivity by deploying SD-WAN EdgeConnect appliances from Silver Peak. Silver Peak is our sponsor.Making DNS record changes more reliable
DNS is the very first step in accessing any website, API, or pretty much anything on the Internet, which makes it mission-critical to keeping your site up and running. This week, we are launching two significant changes that allow our customers to better maintain and update their DNS records. For customers who use Cloudflare as their authoritative DNS provider, we’ve added a much asked for feature: confirmation to DNS record edits. For our secondary DNS customers, we’re excited to provide a brand new onboarding experience.
Confirm and Commit
One of the benefits of using Cloudflare DNS is that changes quickly propagate to our 200+ data centers. And I mean very quickly: DNS propagation typically takes <5 seconds worldwide. Our UI was set up to allow customers to edit records, click out of the input box, and boom! The record has propagated!
There are a lot of advantages to fast DNS, but there's also one clear downside – it leaves room for fat fingering. What if you accidentally toggle the proxy icon, or mistype the content of your DNS record? This could result in users not being able to access your website or API and could cause a significant outage. To Continue reading
Secondary DNS — A faster, more resilient way to serve your DNS records
What is secondary DNS, and why is it important?
In DNS, nameservers are responsible for serving DNS records for a zone. How the DNS records populate into the nameservers differs based on the type of nameserver.
A primary master is a nameserver that manages a zone’s DNS records. This is where the zone file is maintained and where DNS records are added, removed, and modified. However, relying on one DNS server can be risky. What if that server goes down, or your DNS provider has an outage? If you run a storefront, then your customers would have to wait until your DNS server is back up to access your site. If your website were a brick and mortar store, this would be effectively like boarding up the door while customers are trying to get in.This type of outage can be very costly.
Now imagine you have another DNS server that has a replica of your DNS records. Wouldn’t it be great to have it as a back-up if your primary nameserver went down? Or better yet, what if both served your DNS records at all times— this could help decrease the latency of DNS requests, distribute the load between Continue reading
GNMI. Part 3. Using gRPC to collect data in OpenConfig/YANG from Arista EOS and Nokia SR OS.
Hello my friend,
finally after some time we are writing again about the OpenConfig, Nokia SR OS and Arista EOS. This time we do that in the context of gNMI (gRPC network management interface). So, today you will learn how to collect the configuration and operational data from the network functions using gNMI. As usual, there will be a lot of Python, and a lot of fun.
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Start your network automation journey
Network automation is a must-have technology set in all the industries these days. A lot of companies are talking about it, some of them are practising NetDevOps and automation approached. And latter one create a huge positive difference in their business.
At this training we teach you all the necessary concepts such as YANG data modelling, working with all the most relevant data formats JSON/YAML/XML/Protobuf, Linux administration basics, programming in Bash/Ansible/Python for multiple network operation systems including Cisco Continue reading
Zero-Touch Provisioning with Salt
Helping a friend of mine figure out the details of using Salt in Zero-Touch-Provisioning environments, Zach Moody sent me a description of their process, and was kind enough to allow me to turn it into a blog post.
We follow the same basic ZTP process you would with anything else. Salt drives the parts that interface with the network devices with information from our source-of-truth, NetBox.
New IP and Emerging Communications Technologies
A "New IP" framework was proposed to an ITU Study Group last year. This framework envisages a resurgence of a network-centric view of communications architectures where application behaviours are moderated by network-managed control mechanisms. It's not the first time that we’ve seen proposals to rethink the basic architecture of the Internet’s technology and it certainly won’t be the last. But is it going to really going to influence the evolution of the Internet? What can we observe about emerging technologies that will play a critical role in the coming years? Here’s my personal selection of recent technical innovations that I would add into the set of emerging technologies that will exercise a massive influence over the coming ten years.Is Open Source the Way Forward for SD-WAN?
An open source alternative to proprietary SD-WANs could become the de facto industry standard, said...
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Worth Exploring: Arista EVPN-Based Automation Virtual Lab
David Varnum created a fantastic leaf-and-spine fabric of vEOS switches running with GNS3 and automated with Ansible playbooks.
Not only that - his blog post includes detailed setup instructions, and the corresponding GitHub repository contains all the source code you need to get it up and running.
Daily Roundup: HPE Slashes Salaries
COVID-19 wrecked HPE's latest earnings; Verizon updates its 5G plans; and Palo Alto Networks posted...
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