SDN 101: A Comprehensive Guide for IT Professionals

SDN brings many paradigm shifts to managing complex networks. 1. Moving to application APIs vs Command Line configuration of Layer 3 switches, routers, firewalls, and other network equipment. 2. SDN allows configurations of switches to be done at speeds needed to meet data center tenants' demands (example: updates/msec). 3. SDN moves networking from propriety hardware and operating systems to white box switches, routers, and other network equipment using open-source operating systems. 4. SDN provides a powerful platform for creating, managing, and terminating virtual networks. Data Centers are the major drivers of SDN but mobile carriers, broadband providers, optical transport networks and IoT environments are all doing their part to develop SDN for their needs

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Links to Documentation
PowerPoints in *.pptx format:
Slide Deck in PDF:
Video Notes in *.docx:
Video Notes in PDF:

Day 1: Troubleshooting Windows Applications. What is a process and What are threads?
Day 2: Troubleshooting Windows Applications. Types of Applications and Processes.
Day 3: Troubleshooting Windows Applications: Process States
Fiber Optics in the LAN and Data Center
Task Scheduler: Learn how to Analyze and Troubleshoot!
OSI Layer 1: The Physical Layer
OSI Layer 2 Technologies Explained

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[dvanerdivkanade]

6 weeks of CSN305 summarized in 15 minutes. You, Professor, are an absolute gem!

[peppigue]

The tech world is big and sort of chaotic, these kinds of overviews are valuable

[Mark-hcvu]

You are really a life saver professor. Thanks much

[lnbogoda]

This is really a good explanation of SDN.

[danieloswiecinski]

really great overview with tons of information. jumped from slide to slide a bit fast for my liking.

[jfbeam]

In a nutshell, SDN splits the data plane, control plane, and management plane into fully anonymous discrete components. The data plane is still very much the realm of proprietary hardware. (go ask Broadcom for their switch SDK.) An external control plane application allows significantly greater flexibility and detail in traffic handling. The common in -ASIC logic is a simple layer-2 (MAC) lookup; an SDN controller can look at any part(s) of a packet, as well as incorporate things that aren't in the packet (eg. traffic load, latency, link speeds, etc.), and applies it's logic across multiple data planes (i.e. physical switches.)

[johnsenchak]

That sounds a lot like Synology routers with it's Linux based OS , where the IPS and the AV protection modules connect to the cloud My Synology router automatically connects and updates the IPS module on a daily basis. All those purple network cables at 9:38 look real sexy LOL

[ApolloSol]

Does SDN get covered in Comptia A+? Maybe I've overstepped. lol