Support (hardware and software) for the switches currently in operation has been discontinued by the manufacturer. They will therefore be replaced by current, more powerful models as part of the planned lifecycle process. This conversion work will take place on Tuesday, 12. April 2022 in a maintenance window between 10:00 a.m. and 4:00 p.m. During this work, the devices installed in the server housing will be switched to the new network components. This will result in a loss of accessibility of the connected systems and all applications and services active on them. The inaccessibility can last up to 30 minutes. This also applies to redundant (i.e. multiple) connected systems.  

Important: If institute firewalls are located in the SH, interruptions to the Internet or to TU Wien Intranet Services will also occur for institute networks in this case.

We will endeavour to keep the interruptions as short as possible and thank you for your understanding.

No changes to your end systems are necessary. If you suspect a problem after completing the maintenance work carried out, please first check the network settings of your system or contact the IT contact person at your institute. Also check the TUnet-Status,, opens an external URL in a new window and currently listed messages on TU.it Home. If problems persist, send an email to help@it.tuwien.ac.at or contact us at 58801-42002.