1000 FAQs, 500 tutorials and explanatory videos. Here, there are only solutions!
Setting up a backup (spare) stream (in case of encoder failure for example)
Actions to be carried out
Configure a second video stream with the same parameters as your main stream
Send it to the rtmp2.infomaniak.com server instead of rtmp1.infomaniak.com
If a problem occurs with the stream sent to rtmp1, the Edge servers will automatically switch to rtmp2. On the visitors' side the change of server is usually transparent and the interruption relatively short.
Link to this FAQ: