Software Defined Network 2.2

Question 1

What does SDN stand for?

Answer 1

Software Defined Network

Question 2

What exactly is Software Defined Networking?

Answer 2

SDN enables the network to be centrally controlled, or programmed, using software

Question 3

What are 3 different layers of SDN?

Answer 3

Application Layer
Control Layer
Infrastructure Layer

Question 4

What is the application layer?

Answer 4

Focuses on the communication resource requests or information about the network as a whole

Question 5

What is the Control Layer do?

Answer 5

Uses the information from the applications and decides how to route a data packet on the network

Question 6

What does the infrastructure Layer do?

Answer 6

Contains the network devices that receive information about where to move the data

Question 7

What is the management plane?

Answer 7

Used to monitor traffic conditions and the status of the network

Question 8

Easy way of thinking

Answer 8

Application Layer: Collects user requests and data (input)

Control Layer: Analyzes requests, decides how to handle them, issues instructions

Infrastructure Layer: Executes the plan — runs VMs, routes traffic, stores/retrieves data

Management Layer: Oversees everything to make sure the process runs smoothly and efficiently