Software Defined Networking

Question 1

SDN (Software Defined Networking)

Answer 1

• Networking devices have two functional planes of
operation
• Control plane
• Data plane

• Directly programmable
  
  • Configuration is different than forwarding
• Agile
  
  • Changes can be made dynamically

Question 2

SDN (Software Defined Networking)

Answer 2

• Centrally managed - Global view, single pane of glass

• Programmatically configured
  
  • Orchestration - No human intervention
• Open standards / vendor neutral
  
  • A standard interface to the network

Question 3

Distributed switching

Answer 3

• Remove the physical segmentation
• A virtual network distributed across all physical
platforms

• When a VM moves, the network doesn’t change
  
  • Servers will always connect to the right VLAN