Archive

Category Archives for "Networking"

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

Building a new IMDB: Internet Mince Pie Database

Mince Pies CC-BY-SA 2.0 image by Phil! Gold

Since joining Cloudflare I’ve always known that as we grew, incredible things would be possible. It’s been a long held ambition to work in an organisation with the scale to answer a very controversial and difficult question. To do so would require a collection of individuals with a depth of experience, passion, dedication & above all collaborative spirit.

As Cloudflare’s London office has grown in the last 4 years I believe 2017 is the year we reach the tipping point where this is possible. A paradigm-shift in the type of challenges Cloudflare is able to tackle. We could finally sample every commercially available mince pie in existence before the 1st of December. In doing so, we would know conclusively which mince pie we should all be buying over Christmas to share with our friends & families.

What is a mince pie?

For the uninitiated, a Mince Pie is “a sweet pie of British origin, filled with a mixture of dried fruits and spices called mincemeat, that is traditionally served during the Christmas season in the English world.” - Wikipedia for Mince Pie

The original Mince Pie was typically filled with a mixture Continue reading

Network Visibility with Barefoot Deep Insight

As you may have heard this week, Barefoot Networks is back in the news with the release of their newest product, Barefoot Deep Insight. Choosing to go down the road of naming a thing after what it actually does, Barefoot has created a solution to finding out why network packets are behaving the way they are.

Observer Problem

It’s no secret that modern network monitoring is coming out of the Dark Ages. ping, traceroute, and SNMP aren’t exactly the best tools to be giving any kind of real information about things. They were designed for a different time with much less packet flow. Even Netflow can’t keep up with modern networks running at multi-gigabit speeds. And even if it could, it’s still missing in-flight data about network paths and packet delays.

Imagine standing outside of the Holland Tunnel. You know that a car entered at a specific time. And you see the car exit. But you don’t know what happened to the car in between. If the car takes 5 minutes to traverse the tunnel you have no way of knowing if that’s normal or not. Likewise, if a car is delayed and takes 7-8 minutes to exit Continue reading

Aerohive SD-WAN solution simplifies management of multi networks

Most people think of Aerohive Networks as a Wi-Fi vendor, which makes sense given most of the company’s revenue comes from selling wireless access points into businesses. In actuality, Aerohive is a cloud management vendor that has applied its expertise in that area to wireless LANs. About year ago, the company introduced its software-defined LAN (SD-LAN) solution that includes wireless APs and wired switches, enabling its customers to manage the entire campus network from the cloud.This week, Aerohive extended its reach into the WAN with the release of its SD-WAN solution that can be managed through HiveManager, the same cloud management tool used for its SD-LAN products, giving customers a single console for managing the WAN, wired network and wireless APs.To read this article in full, please click here

Aerohive SD-WAN solution simplifies management of multi networks

Most people think of Aerohive Networks as a Wi-Fi vendor, which makes sense given most of the company’s revenue comes from selling wireless access points into businesses. In actuality, Aerohive is a cloud management vendor that has applied its expertise in that area to wireless LANs. About year ago, the company introduced its software-defined LAN (SD-LAN) solution that includes wireless APs and wired switches, enabling its customers to manage the entire campus network from the cloud.This week, Aerohive extended its reach into the WAN with the release of its SD-WAN solution that can be managed through HiveManager, the same cloud management tool used for its SD-LAN products, giving customers a single console for managing the WAN, wired network and wireless APs.To read this article in full, please click here