What Is Segment Routing?

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Good to see you! Let us introduce you to Segment Routing, or SR for short. This innovative new networking technology focuses on the process of routing data packets in a manner that is both more efficient and adaptable. You know there are instances when you wish to deviate from the path your GPS recommends when driving. You'd prefer to avoid the traffic or go on a picturesque diversion. In a network, the function you described is analogous to what SR does for the packets. Packets, as opposed to being forced to follow a specific route, are free to take whatever path best suits the requirements of the network at any given moment. It is the same as having a GPS that can make dynamic adjustments to the route based on the conditions in the here and now. Using "segments" to determine the appropriate route for data packets to follow is one of the fascinating aspects of SR. These sections are comparable to markers or waypoints located along the route. For instance, if you're traveling from New York to Los Angeles by car, you might have to break up your trip with stops in Chicago, Denver, and Las Vegas. Similarly, SR may contain subsections for distinct network components, such as routers or switches. In the same way that you can alter your route by adding or removing waypoints, SR may change the route packets travel by adding or removing segments from the path they traverse. SR builds a network topology using a protocol known as ISIS or OSPF. This essentially means that it generates a map of all of the various paths packets can take throughout the network. After that, it uses algorithms to determine the most effective route for each package, considering bandwidth, latency, and congestion factors. Hold on; there's much more to it! SR also possesses many fascinating properties that make it highly helpful for various applications, such as network slicing and traffic engineering. Through traffic engineering, you can control the path data packets take through the network to achieve the best possible performance. With network slicing, it is possible to establish virtual networks within a physical network, which is helpful for things like the Internet of Things or 5G.

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