Examkin

Question

Difficulty: EasyComparing Traditional Networks with Controller-Based Networking

When contrasting traditional networking with a controller-based software-defined architecture, how is control plane intelligence managed across traditional network devices?

  1. Each network device processes routing logic and maintains its control plane independently.Answer
  2. B
    Control plane decisions are centralized on an external SDN controller using RESTful HTTP GET requests to program data planes.
  3. C
    Control plane operations are offloaded entirely to Hosted Type 2 hypervisors operating at the network access layer.
  4. D
    Control plane functions are processed centrally on AAA authentication servers using RADIUS payloads.

Answer

In traditional networking, control plane intelligence is distributed, meaning each individual network device independently calculates routing decisions and maintains its local forwarding information.
In traditional networking architectures, the control plane logic is distributed. Each router and switch independently runs routing protocols, builds routing tables (RIB), and computes forwarding decisions locally without relying on a centralized software controller.

Step-by-Step Solution

1
Analyze control plane distribution in traditional networks
In traditional network environments, there is no centralized controller. Every network node (router or switch) runs its own control plane protocols (such as OSPF, EIGRP, or BGP) locally.
Control plane protocol processing is fully decentralized across individual devices.
2
Compare with controller-based network architectures
Controller-based networks decouple the control plane from individual network elements and centralize it onto a software-defined network (SDN) controller.
Centralized controllers replace the need for distributed control plane calculations on each individual node.

Key Concept

Distributed Control Plane in Traditional Networking vs. Centralized Control Plane in SDN
Rate this question

Topics

Comparing Traditional Networks with Controller-Based Networking

More questions from this topic