You’re absolutely right.
I’m new to whole cloud computing and architecture area and my driving point for using such a big subnet were the following questions:
- how does ip addressing in a datacenter work that uses a spine-leaf architecture?
- how to address an ip to a new node effectively and efficiently?
- how is scaling and combining multiple machines done if your subnet let’s say serves at least 254 hosts?
After discovering maas and the information I had gathered until this point, it seemed to me that the management tasks are abstracted to a higher level, new machines are booted using pxe, get a dynamic ip assigned via DHCP and the mapping is done by the dns maas is providing, as well as the os. So which network range should I use to have the possibility to add as many machines I want in the future? And my answer to that question was: 10.0.0.0/8
Hope that makes my point clear for that choice!