Software Defined Networking

Question 1

What is SDN mean?

Answer 1

• Software Define Networking
  -Splits the functions into separate logical units
• Extend the functionality and management of a single device
  -Perfectly built for the cloud

Question 2

The three layers of SDN

Answer 2

1 - Infrastructure layer / Data Plane
* process the network frames and packets
* Forwarding, Trunking, Encrypting, NAT

2 - Control Layer / Control Plane
* Manages the actions of the data plane
*Routing tables, session tables, NAT tables
*Dynamic routing protocol updates

3 - Application Layer / Management Plane
*Configure and manage the device
*SSH, Browser, API