Schlagwort: ‘Router’
Technical Background to the X-Win Conversion

Source: Own Illustration
On June 10, 2025, we successfully converted RWTH’s network connection to the German science network (X-WiN) to a new generation of routers. You can also read more information in the blog post. These important components of the network infrastructure were replaced with more powerful and energy-efficient devices. In this article, we take a look behind the scenes of the technical changeover: Why was it necessary? What was replaced? How did the complex conversion actually work?
Change Management in IT: Planning and Implementation Using the Example of the X-WiN Routing Switch

Source: Own Illustration
IT systems are never really “finished”: no sooner has a change been successfully implemented than the software has to be updated or hardware replaced elsewhere. These changes keep us on our toes in the IT Center, but they also pose a challenge in terms of organisation. In this blog post, we take you behind the scenes of change management and use the example of the X-WiN routing switch to show you how we plan such a change in advance.
One becomes two: Goodbye and auf Wiedersehen c6k-rog…Welcome n7ks!
Now it’s official: The c6k-rog was finally switched off from the network at the beginning of November 2021 and is now in a well-deserved retirement. The router, which was the main distributor for all institutes of the RWTH Aachen in the city centre for more than 14 years and routed the entire network, will now be replaced by the two new core routers n7k-carl-1 and n7k-sw23-1.
This means that one router has been replaced by two new, more powerful routers, which will guarantee the IT infrastructure at RWTH Aachen University in the future. This changeover was accompanied by the Network Division of the IT Center which operates the communication infrastructures of RWTH Aachen University. Read the rest of this entry »



