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Traditional vs Software Defined Networking

This page compares traditional networking vs software defined networking and mentions difference between traditional networking and software defined networking.

traditional networking

Figure-1 depicts layers within traditional networking device. It consists of control plane, management plane and data plane. This are referred as static kind of networks.

Software Defined Networking

Figure-2 depicts layers within software defined networks. It consists of one layer of data plane along with open flow API. This is interfaced with controller housing both the control and management plane. Above which on both there exists application layer.

Following table describes difference between traditional and software defined networking types.


Traditional Networking Software Defined Networking
They are Static and inflexible networks. They are not useful for new business ventures. They possess little agility and flexibility They are programmable networks during deployment time as well as at later stage based on change in the requirements. They help new business ventures through flexibility, agility and virtualization.
They are Hardware appliances. They are configured using open software.
They have distributed control plane. They have logically centralized control plane.
They use custom ASICs and FPGAs. They use merchant silicon.
They work using protocols. They use APIs to configure as per need.

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