What actually does "nova fixed-ip-reserve"?

asked 2015-03-16 10:08:15 -0600

msuchy gravatar image

I wonder what command

nova fixed-ip-reserve IP

does? The only description I found is that "Reserve a fixed IP." Reserve for what? It can not be used until I call fixed-ip-unreserve? Or I can somehow use it while it is reserved? For what it is useful?

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