SDN

Question 1

SDN

Answer 1

SDN is a way to manage networks which separates the logic which decides where data goes from the hardware that moves the data

Question 2

SDN controller

Answer 2

Control plane of SDN which manages the network by telling the devices what to do with data
-Communicates with decides using OpenFlow

Question 3

Planes of SDN

Answer 3

1.infrastructure/data/forwarding plane
2. Control plane
3. Application/ management plane

Question 4

Infrastructure/data plane

Answer 4

Sends data based on instructions or according to rules from the control plane
- handles NAT, trunking, forwarding, encrypting

Question 5

Control plane

Answer 5

manages the network be making decision on where data should be send and sending those decision to the data plane
Where: routing, session and NAT table are and SDN controller

Question 6

Management/ application plane

Answer 6

Where you configure and manage the infrastructure devices
Where : SSH, , API’s, and browsers are used

Question 7

SD-WAN

Answer 7

Like SDN for WANs it’s sepersted the control layer from the hardware infrastructure simplifying management and operation

-has a central controller that manages traffic in the wan like SDN(uses polices and priorities to dertermine how traffic should behave)
- dynamic Path selection- monitors paths for issues and adjust accordingly

-prioritize traffic using classes to allow more bandwidth for more important traffic like QOS