Hi mates.
Lets continue with the course. Now, here talks about of a brief overview of SDN
Remember, this is a chain serialed posts, so if you wish, click Here to initiate from the Beginning.
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SDN OVERVIEW
Network Transformation Trend.
To better explain SDN for easier understanding, the analogy between computer evolution and network evolution is normally used as the example of discussion.
Above showing analogy comparison when buying computer with specialized hardware, specialized operating system and specialized applications, all-in-one package, in which manufactured by vendor or computer with microprocessor with open interfaces published, in which leads to many operating system that able run on top of it and also equipped with open interfaces in which leads to many applications that able installed on top of operating system
For the first part, is called vertical integrated, mostly closed and proprietary, lead to slow innovation and small industry.
Latter part is called horizontal integrated, very rapid innovation and became huge industry.
SDN Definition
· It is the acronymic for “Software Defined Network”
· Introduced by Project Clean State- “Redesign the Network”
· The physical separation of the network control plane from the forwarding plane, and where a control plane controls several devices.
Software defined networking is a new networking approach where physically separation of the network control plane from the forwarding plane. SDN introduces new component called controller, in which manage several devices in centralized manner.
It is reconstruction on the current networks. In future, new services are deployed by programming on the SDN controller and adding or upgrading the software programs on the SDN. Customer requirements can be met quickly.
Click Here Characteristisc of The SDN Controller to the NEXT post
Thank a lot for your reading. I hope that you found this information concise, clearly and helpful.
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