In order to be able to offer appropriate speeds for even the most bandwidth-hungry applications in the future, we are gradually carrying out hardware upgrades to the network in the data center. In the very near future, it will be possible to connect servers to the network at 100 gigabits per second, which can forward this data at up to 400 gigabits per second.

The data center network follows a spine-leaf architecture; in the first step, we want to make the spine switches 400G-capable so that in the next step we can put new leaf switches with 100G connections for servers and 400G connections to the spine switches into operation.

The two spine switches in the primary data center on the Freihaus campus will start on Monday, March 10, 2025 from 10:00 a.m. to 6:00 p.m. While one spine is being swapped, the leaves will use the connection to the other spine; This means that there should be no noticeable outages in the data center network.

We will then replace the two spine switches in the backup data center on the Gußhaus campus on Wednesday, March 12, 2025, and finally expand the data center to include the BFU2 location on the Getreidemarkt campus on Monday, March 17, 2025.