Simple Service Discovery Protocol (SSDP): Definition & Example

Instructor: Beth Hendricks

Beth holds a master's degree in integrated marketing communications, and has worked in journalism and marketing throughout her career.

Simple Service Discovery Protocol allows devices to connect and communicate easily over a network. In this lesson, you'll learn more about this protocol and its connection to the Internet of Things world.

Making a Connection

Imagine this: It's the day after Thanksgiving and you're standing in line outside the electronics retailer to get your hands on a great deal for wireless headphones. You get inside, grab a pair in your favorite color and pay for your purchase. You can't wait until you get home to try them out so you unbox them in the car and grab your smartphone. Almost immediately, your phone picks up your wireless headphones, recognizes them and pairs them to your device.

Pretty amazing, right? And, you have something known as Simple Service Discovery Protocol (SSDP) to thank for it. If you don't know what SSDP is, you've come to the right place. Consider this a primer for understanding what SSDP is all about.

What is Simple Service Discovery Protocol?

So, what is SSDP anyway? Simple Service Discovery Protocol is a network protocol and the basis for Universal Plug and Play architecture. Quite simply, it means that devices can find and communicate with each other by plugging them in or turning them on, enabling them to ''play'' with minimal configuration on the part of the owner. In this regard, it's very much an invisible networking experience that allows devices to connect automatically.

Think about a printer you purchased for your home office. Instead of going through a lengthy set-up process, thanks to SSDP and Universal Plug and Play, you can plug your device in, power it on and your laptop and tablet can recognize it on your network.

SSDP is ideal for small offices and homes where users don't want to configure ans set-up devices or maybe don't even understand how. Instead, Simple Service Discovery Protocol allows devices to discover other published network devices and services and send and receive information between them.

SSDP and IoT

That's a lot of acronyms, right? SSDP and IoT, or the Internet of Things. Devices in the Internet of Things include gadgets like smart light bulbs, smart thermostats, smart home locks and internet-connected fitness bands or even home security systems. In short, IoT devices are things you would normally think of as not being connected to the internet, but actually are.

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