First Speakers in the Spring 2018 Automation Online Course

For the first two sessions of the Building Network Automation Solutions online course I got awesome guest speakers, and it seems we’ll have another fantastic lineup in the Spring 2018 course:

Most network automation solutions focus on device configuration based on user request – service creation or change of data model describing the network. Another very important but often ignored aspect is automatic response to external events, and that’s what David Gee will describe in his presentation.

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Configuring InterVLAN Routing- Router on Stick

Today I am going to talk about the configurational part of the Inter-VLAN scenario with the Router on stick which is used earlier in many of the enterprise LAN networks to have the inter-VLAN communication through the Router.

Most of the Routing and Switching experts already knew how to configure the Router on Stick configuration in order to have the inter-VLAN communications. Although now a days enterprises uses SVI instead if Router on stick as SVI is the better way to have the communication on the Core Switches.

Before i started with one of the scenario of the Inter-VLAN router on stick followed by the configuration part, I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos.

Subscribe us on Youtube: http://y2u.be/0c4lMYVp9go

Thanks who already subscribed to our Youtube Channel. We will soon going to have so many videos on the networking basics, essentials and advance case studies in order to educate everybody in the networking space. Once again Continue reading

New Content: Debugging Ansible Playbooks and Jinja2 Templates

Here’s a quote from one of my friends who spent years working with Ansible playbooks:

Debugging Ansible is one of the most terrible experiences one can endure…

It’s not THAT bad, particularly if you have a good debugging toolbox. I described mine in the Debugging Ansible Playbooks part of the Ansible for Networking Engineers online course.

Please note that the Building Network Automation Solutions online course includes all material from the Ansible online course.

Cisco DNA Center Vs Arista Cloud Vision

Today I am going to talk about the Automation orchestration layer for Cisco and Arista which can push the policies around the network automatically and many other features to have the best customer experiences. The goal for Cisco and Arista are same to provide the automation in the Campus or enterprise networks.

Before I will start up with the Cloud Vision and Cisco DNA center, I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos.

Subscribe us on Youtube: http://y2u.be/0c4lMYVp9go


Arista Networks- Cloud Vision
Lets talk about the Cloud Vision first. Cloud Vision is the part of Arista Networks showing the capabilities of the network automation.

CloudVision platform is a software suite of services that deliver further operational simplification of the Arista physical infrastructure 

Work ow monitoring and provisioning is controlled centrally with pre-integrated tool sets for provisioning, change management, network-wide upgrades & rollback, network monitoring, network virtualization, and visibility services. 

Fig 1.1- ARISTA Cloud-Vision

CloudVision actually Continue reading

Introduction to Arista Networks High End Switches : Arista 7500 E Switches

Today I am going to talk about one of the new vendor in the market named as Arista Networks who came up with the high end Switches. Although Arista Networks have many switches in their portfolio but specifically I am going to talk about the Arista 7500E switches.

Before I start with the Arista 7500E switch, I would like to tell you guys that we have our own youtube channel for various network videos that can further help you guys to study further. I will going to add many more videos soon on the channel, Please subscribe to the channel for the study network related videos.

Subscribe us on Youtube: http://y2u.be/0c4lMYVp9go

Arista 7500E come up with two different models. These switches are generally for the core switching as they have the high switching capacity. These models are Arista 7504E and Arista 7508E. Arista 7500E Series modular systems are high performance data center switches, available in a compact 7RU (4-slot) or 11RU (8-slot) they combine scalable L2 and L3 forwarding and traffic management with advanced features for network monitoring, precision timing, and network virtualization to deliver deterministic network performance for mission critical data centers, cloud computing, enterprise and HPC environments.

Arista Continue reading

Pre-Order My Computer Networking Problems & Solutions Book And Save 40%

I co-authored Computer Networking Problems And Solutions with Russ White. The nice folks at InformIT.com are accepting pre-orders of the book and ebook at 40% off until December 16, 2017. Go get yourself a copy of this short 832 page read via this link containing all of InformIT’s titles coming soon.

Or, if you use the book’s product page instead of the “coming soon” link above, use code PREORDER to get the discount.

All “coming soon” titles on sale at InformIT: http://informit.com/comingsoon

Product Page for Computer Networking Problems & Solutions: http://www.informit.com/store/computer-networking-problems-and-solutions-an-innovative-9781587145049

Pre-Order My Computer Networking Problems & Solutions Book And Save 40%

I co-authored Computer Networking Problems And Solutions with Russ White. The nice folks at InformIT.com are accepting pre-orders of the book and ebook at 40% off until December 16, 2017. Go get yourself a copy of this short 832 page read via this link containing all of InformIT’s titles coming soon.

Or, if you use the book’s product page instead of the “coming soon” link above, use code PREORDER to get the discount.

All “coming soon” titles on sale at InformIT: http://informit.com/comingsoon

Product Page for Computer Networking Problems & Solutions: http://www.informit.com/store/computer-networking-problems-and-solutions-an-innovative-9781587145049

Weekend Reads: The Relay Box Attack

West Midlands Police believe it is the first time the high-tech crime has been caught on camera. Relay boxes can receive signals through walls, doors and windows but not metal. The theft took just one minute and the Mercedes car, stolen from the Elmdon area of Solihull on 24 September, has not been recovered. @BBCWest Midlands Police believe it is the first time the high-tech crime has been caught on camera. Relay boxes can receive signals through walls, doors and windows but not metal. The theft took just one minute and the Mercedes car, stolen from the Elmdon area of Solihull on 24 September, has not been recovered. @BBC

There’s rising worry that corporations are taking over America. But after reviewing a slew of the bids by cities and states wooing Amazon’s massive second headquarters, I don’t think “takeover” quite captures what’s going on. More like “surrender.” Last month Amazon announced it got 238 offers for its new, proposed 50,000-employee HQ2. I set out to see what’s in them, but only about 30 have been released so far under public-record acts. @The Seattle Times

The Supreme Court will hear oral arguments in Carpenter v. United States on November Continue reading

No Slowdown in Sight for Kubernetes

Kubernetes has quickly become a key technology in the emerging containerized application environment since it was first announced by Google engineers just more than three years ago, catching hold as the primary container orchestration tool used by hyperscalers, HPC organizations and enterprises and overshadowing similar tools like Docker Swarm, Mesos and OpenStack.

Born from earlier internal Google projects Borg and Omega, the open-source Kubernetes has been embraced by top cloud providers and growing numbers of enterprises, and support is growing among datacenter infrastructure software vendors.

Red Hat has built out its OpenShift cloud application platform based on both …

No Slowdown in Sight for Kubernetes was written by Nicole Hemsoth at The Next Platform.

Stuff The Internet Says On Scalability For December 8th, 2017

Hey, it's HighScalability time: 


AWS Geek creates spectacular visual summaries.

 

If you like this sort of Stuff then please support me on Patreon. And please recommend my new book—Explain the Cloud Like I'm 10—to those looking to understand the cloud. I think they'll like it.


  • 127 terabytes: per year growth in blockchain if bitcoin wins; 4: hours from tabula rasa to chess god; 1.4 billion: Slack jobs per day; 400: hyperscale data centers worldwide by 2018; 9.8X: Machine Learning Engineer job growth; 14%: Ethereum transactions are for Cryptokitties; 80: seconds per hash on 55 year old IBM 1401 mainframe; $110 billion: app stores spending in 2018; 25: years since first text message; 4,000: AWS code pushes per day; two elephants: of space dust hits earth every day; 

  • Quotable Quotes:
    • @DavidBrin: Now that's what I call engineering! [Voyager 1] Thrusters that haven't been used in 37 years - still reliable!
    • drkoalaman: So despite not supporting other cryptos the majority of my time on the DNM's I think its officially time to step away from bitcoin, at least for the time being. Went to do a direct deal today with Continue reading

Worth Reading: Are you a genius or a fraud?

One time, when I was a small child, I saw Hank Aaron go to bat. He had already hit his 500th home run. I was looking forward to seeing this genius do his thing. I was devastated when he struck out. Some genius, I recall thinking. As an eight-year-old, my first thought was that I could have done exactly what he did. Of course, Hank knew something that I, at the time, did not. Genius is about averages, not every time at bat. If every time you strike out, you imagine that you might be a fraud, you will make yourself insane. —Jeffery Tucker @ The Stream

oVirt roles Ansible Galaxy integration

In 4.2 release we have splitted our oVirt Ansible roles into separate RPM packages and also separate git repositories, so it is possible for user to install specific role either from Ansible Galaxy or as RPM package.

The reason

The reason to split the roles into separate packages and git repositories was mainly the usage from the AWX/Ansible Tower. Since Ansible Galaxy is only integrated with github you need to store your Ansible role in single git repostiory in order to have separate Ansible role in Galaxy. Previously we used one single repository where we have stored all the roles, but because of that manual configuration was required to make those roles usable in AWX/Ansible Tower. So as you can see on image below we now have many roles in Ansible Galaxy under oVirt user:

oVirt roles in Ansible Galaxy

How to install the roles

There are still two ways how to install the roles: either using Ansible Galaxy or using RPM package available from oVirt repositories.

Ansible Galaxy

You are now able to install just a single role and not necessarily all of them at once like in previous versions For example to install just oVirt cluster upgrade role, you have to run Continue reading

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