We have added the newest generation of 400G (QSFP-DD) and 100G (QSFP28) Transceivers to our Open Networking shop STORDIRECT:

100G QSFP28

Check them out on STORDIRECT and get in touch with us!

We have updated our Open Networking Shop STORDIRECT with a great new feature – an improved search function!

It allows you to search for the products a lot more efficiently and faster and is suggesting you the products as you type, to help you find what you are looking for.

Check it out at STORDIRECT – The Open Networking Shop!

We are happy to be able to introduce to you our #Back2Open Program for stranded Cumulus Linux users! Make the switch back to an actively supported and maintained Open Network Operating System (NOS) now – with a free NOS software license*.

Some background information: You have probably heard the news by now that Cumulus Linux and Broadcom are parting ways, after NVIDIA acquired Cumulus Linux.

This development has a major impact on anyone that is using a combination of Cumulus Linux with a network switch that is powered by a Broadcom ASIC and will require some form of action to avoid that negative impact.

Our #Back2Open Program was initiated for exactly that reason: We will help you switch from Cumulus Linux back to an actively maintained and supported Open Networking OS (NOS) – with a free NOS license*.
*Only the software support would need to be acquired.

Download the Brochure

Check out our information brochure for additional information

Read More On Our Website

Check out our information page on our website

While these three are closely linked to networking, they differ technically and practically. Many people find it challenging to distinguish between them because of the interrelation. A Software-Defined Network can be both open networking and open source. However, something can be open source but not open networking since they aren’t the same thing. With this in mind, figuring out what each of these does is essential to understand its benefit in the networking industry. 

Open flow or open source works in the same way as an API by configuring network switches. On the other hand, open networking provides for a breakdown of the complex nature of software and hardware to offer a more programmable and scalable network. This way, it can be configured to meet a variety of requirements. Open-source and open networking follow a common ground in that they are both open but differ in application.

SDN (Software-Defined Network) is a close-knit of programmable interfaces used in a network infrastructure to improve automation while providing network services. However, the term SDN has been used to define a variety of technologies. But, it can be specified explicitly in its application.

How to distinguish between Open Source, SDN and Open Networking?

It is excusable that many people fail to distinguish between the three because of their relation. However, they cannot be used interchangeably. This article provides insights to understand each of them and distinguish it from the other.

What is Open Source?

Simply put, open source is easily accessible, and the source code can be manipulated, reprogrammed, and scaled to meet requirements. This includes software and programs accessible to the public and can be shared almost by anybody. When the source code is available to anyone on the internet, the need to rework is increasingly possible. Anybody can view, modify, share, and even learn how to im[prove the software.

An Open Source is convenient for creating communication paths, technical communities and also helps construct networking equipment such as Ethernet switches. This networking model is highly favored by developers, vendors, engineers, and service providers. It draws great attention to anyone who appreciates developing a specific type of software and programs. While it sounds pretty simple, there is more than meets the eye! An open-source application or program requires one to comply with licenses. These may include General Public License (GNU) or Apache license. The license will define the terms, agreement, and conditions of the source code’s use and distribution. However, a second user may need to preserve or agree to the terms before redistributing or altering the code. This way, the name of the developer and/or authors is maintained and preserved.

What is Open Networking?

Open Networking is a unique combination of using bare-metal switch hardware (coming from such as ODM companies like Accton / Edgecore, Delta / Agema, UfiSpace) with a different NOS (Networks Operation Software) which could be a commercial one (ex. Pica8, IP Infusion, RTBrick, Pluribus Networks, Capgemini /Altran etc.) or open source (like SONiC or DENT) as long as you have compatibility with the CPU, U-boot and ASICs – other words saying so-called porting need to be done first. As those all mentioned NOS options are base on Linux, you are getting a chance to use a wide range of commercial or again open source tools for management, configuration, and automation such as Chef, Puppet, Ansible, or Grafana, Prometheus, and more.

Network engineers and administrators have found much success with this kind of system because they don’t have to rely on one specific software or hardware but instead choose from many options to create a solution that benefits their needs.

Would you like to learn more about Open Networking clik here.

What is Software-Defined Network (SDN)?

SDN is essentially meant to decouple data packets within a network. It provides centralized management and configuration of the network instead of using several switches and servers throughout the network. This is crucial since an enterprise or network provider can respond efficiently to changing trends in the business environment.

SDN provides for programmable interfaces within a network, making it easier to apply them together with other networking technologies. There are 3 types of SDN architectural layers including;

  • Physical Network – This is the lowest layer in the network infrastructure. It includes devices such as ethernet switches forming the IT infrastructure of the network. Virtual switches can also be classified into a physical network.
  • SDN Application – This is the visible layer in an SDN design similar to modern-day applications and software. They run on dedicated programs and hardware, but the innovation comes from SDN applications.
  • SDN Controller – It is the linchpin to the entire infrastructure, linking both the virtual and physical network. It provides an avenue for integration and usability of the whole infrastructure.

In a modern application of a Software-Defined Network, a vendor will provide both the application and the SDN controller as a unit. However, the controller takes center stage as a crucial element for the entire network infrastructure.

Are they one and the same thing?

Well, there is a complete difference between Open Source, Software-Defined Network, and Open Networking. Both SDN and open source play a combined role in offering open networking. However, they are not equally the same. On the same note, both Open Networking and Open Source work under the same principle and concept of being open. But they are quite different.
From the definitions above, you will notice how they differ from the others in concept and application

Free Software vs Open Source Software

Many people tend to confuse Open Source software as free. The fact that it is accessible to the public for modification, sharing, and manipulation is not necessarily free. Some vendors opt to charge a one-time fee while others charge for installation, troubleshooting, and helping customers manipulate the software. In the former, a vendor may lose their licenses and will have to release the source code to the customer.
Before deciding on the perfect choice, choose the software that relates to you according to your actual needs.

Want to Learn More About it?

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We are happy to announce that we have signed a distribution agreement with Microtel Innovation, that makes us a Distributor of their rich product portfolio of Network Packet Brokers, Networks TAPs and related devices.

This agreement allows us to extend our disaggregated Networking portfolio with Microtel Innovation’s Network Packet Broker Solutions. These are based on 10Gbit/25Gbit/100Gbit (with 400Gbit coming soon) Bare Metal Switches from Edgecore Networks – our long-time reliable partner in the Open Networking world.

Apart from these Network Packet Brokers (NPB), Microtel Innovation also provides a wide range of visibility products including Network TAPs, GTP Balancer and Offloader, Packet Duplication and Header Stripping dedicated appliances.

You can check all of these products out in our STORDIRECT shop, where you can also directly request quotes for these products.

“Freedom, Independence and Innovation is key for Open Networking Solutions and we are proud to have found the right partner to collaborate and build up on the disaggregated approach of providing open Load Balancing and Network Packet Broker solutions.”

Waldemar Scheck,

“We are excited to start this important collaboration with a company that is a recognized market leader in Open Networking. Bringing our deep knowledge and proven experience in the Telco and Security monitoring space and leveraging the disaggregated approach to create innovative and future-proof solutions, we will generate the in-depth, extensive and actionable Network Visibility our customers need.”

Gianni Pompermaier,
Microtel Innovation President and CEO

“We are very excited about the relationship between Microtel, STORDIS, and Edgecore. One of the key factors to drive the wider adoption of open networking is to make it easier for customers to acquire, deploy and support open network technology. This new relationship will allow customers to get an OEM-like experience while getting all of the benefits of open networking.”

Andrzej Brzezinski,
Edgecore Networks Sales Director EMEA

Press Release

Check out our full press release for additional information


Check out the products in our STORDIRECT shop

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One of the main questions that comes up, when we talk to people that have had no contact with the Open Networking concept before, is the question of support: Who will take care of the hardware and software support? They think there is only limited advanced commercial support available for Open Networking Bare Metal Switches.

While that of course is not the case, we wanted to address this “fear” pesonally and decided to take things into our own hands and to add a great additional option for our customers:

With our many years of experience in the Open Networking field, helping customers to deploy and run their Open Networking Environments across the many different industries, we know what customers expect, when they are looking for support.
We used this knowledge as our basis to form a great new offering for the Open Networking Community (and anyone that wants to be part of it):

We now can offer you three types of Service Level Agreement that extend the standard manufacturers’ warranty and will cover all of your needs, in case you run into any issues.

Check these options out and read the information brochure below for more information.
Get in touch with us, to find the best solution for you, to even further reduce downtimes.

Service Level Agreements

Availability from 8 am–5 pm**, 5  business days a week (Mon–Fri) and an advanced exchange service of defective hardware on the next business day. Any required spare parts as well as transportation costs are covered with this Service Level Agreement.

Availability from 8 am–5 pm**, 5 business days a week (Mon–Fri). Our specialists will support you with software and hardware problems. If a problem cannot be solved remotely, a replacement part will be shipped out. The replacement part will arrive within the next business day at your location. Any required spare parts, resource and transportation costs are covered within this Service Level Agreement.
Availability from 8 am–5 pm**, 5 business days a week (Mon–Fri). Our specialists will support you with software and hardware problems. If a problem cannot be solved remotely, a technical specialist from STORDIS or one of their Support Partners will be dispatched to resolve the problem on-site on the next business day. Any required spare parts are covered with this Service Level Agreement.

Quick Feature Overview

Feature Smart Advanced* Premium*
8 am–5 pm, 5 business days
Hotline and Remote Support,
8 am–5 pm, 5 business days
Hardware Advanced Exchange,
Next business day
On-site Support,
Next business day

*Please request for availability in your region | **German/UK local time

Information Brochure

Check out our information brochure for additional information

Want to Learn More About it?

Get in touch with us and we will answer all of your questions.

Contact Us

While our previous website had served us well, we decided that a relaunch of our homepage was necessary.

After a few weeks of hard work with blood, sweat and tears, we can now proudly present you our new homepage.
It is now faster, slicker and easier to use than ever before and gives an overall better user experience for everyone that is visiting The Open Networking Expert’s homepage.

Feel free to browse around, and learn about STORDIS and the Team or about our trusted partnerships with our Partners. And last but not least learn about why Open Networking is the future.

Let us know, what you think about this new design. We hope you will enjoy it!

We have updated our Open Networking Shop STORDIRECT with a few new exciting products!

Amongst others new products from Edgecore Networks Corporation, Xilinx, Netronome and Mellanox.

Check them out at STORDIRECT – The Open Networking Shop

STORDIS is now a member of the BCP Council Smart Place Research & Development Consortium.

The project was initiated by BCP Council and aims to create digital solutions to improve the lives of residents, the vibrancy of communities and the prospects of local businesses in the Bournemouthe, Christchurch and Poole area in Great Britain.

Together with our Partner Zeetta Networks we are working on a 5G Development Project and are looking forward to bringing the future of wireless networking to the BCP area and solving real world issues.

Stay tuned for future exciting developments!

Further information on the Smart Place project can be read here.

We are happy to announce the launch of our new and revamped webshop “STORDIRECT – The Open Networking Shop”.

All the products (and many more to come!) that are essential for your Open Networking needs – just a click away.

Feel free to browse around and get in touch with us – we are looking forward to it!


Open Network Switches
Adapter Cards
Network TAPs
Network Packet Brokers
Time Synchronization
More Solutions


Browse the products we are offering in our web shop STORDIRECT and receive competitive quotes.

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