[PVE-User] Proxmox servers don't see each other anymore

Eneko Lacunza elacunza at binovo.es
Mon Jun 19 17:00:41 CEST 2017

Try putting a "dumb" switch to interconnect all 3 proxmox nodes. Put an 
uptlink cable to the "original" switch.

I now it works, it's a switch problem - maybe it is broken, maybe it is 
too smart and is dropping cluster communication packages.

I have seen this two times:
- One switch was broken and lost packages -> new switch
- Other switch was core 3Com switch; we seemed unable to configure it 
not to drop our cluster communication packets, so just bought a dumb 
enought HP 1810-24g switch just for the proxmox nodes and problem solved.


El 19/06/17 a las 16:45, Gerald Brandt escribió:
> Hi,
> My proxmox server intermittently don't see each other anymore. I keep 
> losing quorum.
> I have 3 Proxmox servers, and they will randomly not see each other. 
> For a few seconds proxmox-2 will see proxmox-1, but not proxmox-3. 
> Then it'll switch and proxmox-2 will only see proxmox-3, then it will 
> see no one but itself.
> I have the IP and names in /etc/hosts and in DNS.
> Any idea where I can start looking?
> Gerald
> _______________________________________________
> pve-user mailing list
> pve-user at pve.proxmox.com
> https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user

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