Driss Jabbar 8 Comments


VXLAN EVPN – VxLAN is an overlay technology that encapsulates a Layer 2 frame into UDP header to extend your Layer 2 domain over a Layer 3 underlay infrastructure. Within the UDP header, there is VxLAN header, within this header you have a VxLAN Network identifier (VNI) represented by 24 bits, it means that you have more than 16 million logical networks (recall that you can configure up to 4096 VLANs only)



The idea behind developing such kind of technologies is to overcome some business and technical requirements in todays’ Datacenter architectures such as:


  • Datacenter interconnect, workloads live migration.
  • Using infrastructure resources efficiently and getting rid of any scalability issues related to Spanning tree or VLANs number.
  • Limiting resources consumption due to flooding symptom.


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Orhan Ergun 3 Comments

SDN for the Network Engineers, What Should You Do?

Software Defined Networking is real,everyone talks about SDN, network engineers worry about their jobs and ask below questions. Hundreds if not thousands of articles, a lot of books have been written on SDN.

SDN is not a new idea or concept and we see this ping pong game many times but this time it is marketed very well in my opinion thats why everyone talks about SDN and that is real, inescapable.

Yesterday we were talking with Russ White on webex for one of my project which I will announce very soon and at some point we started to talk about SDN.

What should Network Engineers will do in the new SDN world? 

Which type of skills Network Operators, Admins even Network designer should have to survive in SDN era?

Will SDN kill the network engineering?

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