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Zorluk: OrtaComparing Traditional Networks with Controller-Based Networking

A network engineering team is evaluating the operational differences between a traditional distributed architecture and a centralized controller-based network deployment. Which operational characteristic correctly distinguishes the control plane handling in a controller-based network from that of a traditional distributed network?

  1. Control plane intelligence is centralized within a software controller that dictates forwarding policies across the network, whereas traditional network devices each run independent control plane processes locally.Cevap
  2. B
    Access layer switches in controller-based networks require local agent software to initiate outbound SSH management sessions to retrieve control plane tables, whereas traditional devices operate strictly in an agentless push configuration.
  3. C
    Southbound APIs use HTTP GET operations from network switches to overwrite and modify centralized routing tables on the controller during topology updates.
  4. D
    Controller-based networks isolate data plane forwarding from control plane logic using formatted JSON arrays with square brackets, while traditional networks use dictionary key-value structures.

Cevap

Control plane intelligence is centralized within a software controller that dictates forwarding policies across the network, whereas traditional network devices each run independent control plane processes locally.
The correct answer highlights the fundamental shift from distributed to centralized architecture. In traditional networking, every device operates its own control plane protocols to learn routes and switching paths. In a controller-based architecture, a centralized controller offloads or manages these control plane duties and programs the forwarding tables on underlying data plane devices.

Adım Adım Çözüm

1
Analyze how traditional networks handle control plane operations
Identify that traditional network infrastructure relies on distributed intelligence where each switch or router runs its own control plane algorithms (e.g., OSPF, EIGRP, STP) locally.
Understanding traditional architecture requires recognizing that every node operates autonomously to build its routing and MAC tables.
2
Analyze how controller-based networks handle control plane operations
Identify that controller-based networks shift control plane intelligence to a centralized software controller.
Centralization allows the controller to possess global visibility of the network topology and programmatically direct device forwarding behaviors via Southbound APIs.
3
Compare the two models to select the correct architectural distinction
Confirm that centralizing control plane intelligence on a software controller versus running independent local control plane algorithms per device is the primary architectural difference.
This fundamental shift enables automated management, intent-based policies, and consistent network-wide provisioning.

Anahtar Kavram

Centralized Control Plane vs. Distributed Control Plane
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Comparing Traditional Networks with Controller-Based Networking

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