Section 1.7 Flashcards
What are the three tiers of network architecture?
Core
Distribution
Access
SDN
Software Defined Networking
What is the Application Layer of SDN responsible for?
Configuring and managing devices
What is the Control Layer of SDN responsible for?
Manages the actions of the data plane/infrastructure layer
Routing tables
Session tables
NAT tables
What is the Infrastructure Layer of SDN responsible for?
Processing network frames and packets, such as:
Forwarding
Encrypting
Translating (NAT)
Trunking
In SDN, what plane is the infrastructure layer on?
Data plane
In SDN, what plane is the control layer on?
Control plane
In SDN, what plane is the application layer on?
Management plane
In a Spine and Leaf network architecture, what do the Spine and Leaf switches connect to?
Spine switches only connect to Leaf switches
Leaf switches only connect to Spine switches and end devices like servers, storage, and network devices
What is equipped at the top of each server rack?
Top-of-Rack (ToR) switch
ToR
Top-of-Rack (switch)
What is the Backbone in a Spine and Leaf architecture?
the Spine layer
Which direction of traffic flow is it when going out to the internet?
North traffic
What direction of traffic flow is traffic between a data center’s servers?
East-West traffic
What’s the difference between a Branch Office, On-Premises Datacenter, and Colocation?
Branch Office: Small, remote with basic IT
On-Premises Data Center: Company-owned with full control
Colocation: Rented and shared third party facility
