[PVE-User] SDN issues in 6.4

Daniel Berteaud daniel at firewall-services.com
Wed Apr 28 14:39:38 CEST 2021

----- Le 28 Avr 21, à 14:10, Daniel Berteaud daniel at firewall-services.com a écrit :

> Hi.
> Just upgraded a small 3 nodes cluster to 6.4 today. This cluster used the SDN
> feature with a single VLAN zone, and a few vnets (each one of the vnets using a
> VLAN tag, and not VLAN-aware themself).
> I see several issues regarding SDN since the upgrade :
>    * The biggest issue is that in Datacenter -> SDN I only see a single node (with
>    the status "available"). The other two do not appear anymore. Without paying
>    attention, I clicked on the "Apply" button. This wiped the
>    /etc/network/interfaces.d/sdn file on the 2 nodes which do not appear anymore,
>    and reloaded their network stack. Needless to say it was a complete failure as
>    all the VM attached to one of those vnets lost network connectivity. I've
>    manually copied this /etc/network/interfaces.d/sdn file from the only working
>    node to the other two for now, but I can't make any change from the GUI now or
>    it'll do the same again
>    * In Datacenter -> SDN -> Zones, my single zone didn't appear anymore. No Zone
>    were displayed at all. But the Vnets correctly showed they were attached to my
>    zone. /etc/pve/sdn/zones.cfg correctly had my zone defined here. I tried adding
>    it again from the GUI, which seemed to work. The only change it made to
>    /etc/pve/sdn/zones.cfg is the new "ipam: pve" option added to the existing zone

I just opened https://bugzilla.proxmox.com/show_bug.cgi?id=3403
I checked another single node (no cluster) PVE install, which have the exact same issue, so it's not something specific on my setup, but a more general (and critical) bug


[ https://www.firewall-services.com/ ] 	
Daniel Berteaud 
FIREWALL-SERVICES SAS, La sécurité des réseaux 
Société de Services en Logiciels Libres 
Tél : +33.5 56 64 15 32 
Matrix: @dani:fws.fr 
[ https://www.firewall-services.com/ | https://www.firewall-services.com ]

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