PVE 3.4 change from multicast to unicast

[screenie]

Hello,

I have an cluster running in multicast mode and the provider stopped supporting multicast - turned off during switch firmware upgrade and they don't want to enable it again.

Is there an procedure to switch from multicast to unicast without braking things and possibly no or minimum downtime?

thx

 

[wolfgang]

Hi,

see
man corosync.conf

 

[t.lamprecht]

And also:
https://pve.proxmox.com/wiki/Multic....29_instead_of_multicast.2C_if_all_else_fails

 

[guletz]

Hi,
Another solution is to create a vpn for all nodes(like tinc), and use the vpn tunnel to transport corosync multicast traffic!

 

[screenie]

thanks, sorry - i was to unspecific;

i know what needs to be change in the configuration file (cluster.conf) but is there a special procedure to follow or simply editing the file and restart the pve-cluster service?
want to avoid unexpected downtimes or issues related to this config change;

thx