How to configure assign same network address in fan overlay network?

LXD
1

Hi.

When configuring the lxd cluster to use the fan overlay network, the bandwidth of the fan overlay network address is set differently for each node.

Currently, only fan overlay_subnet = / 8, / 16 is supported.

So, when configuring overlay network in lxd cluster, is it possible to set the same network address band (i.e, 172.16.10.0/24)?

And…

Is there any way to know which overlay subnet I have used so far?

Thank you

2

The fan is completely stateless.

Example with a /16 underlay:

  • Overlay set as 240.0.0.0/8
  • One server at 172.16.10.2 gets 240.10.2/0/24 as fanbr0 subnet
  • One server at 172.16.5.2 gets 240.5.2.0/24 as fanbr0 subnet

Example with a /24 underlay:

  • Overlay set as 240.0.0.0/8
  • One server at 192.168.1.1 gets 240.1.0/0/16 as fanbr0 subnet
  • One server at 192.168.1.2 gets 240.2.0.0/16 as fanbr0 subnet