VM Network VLAN Tagging doesn't work on OVS Bridge

[AristonPost]

I've got a Proxmox 8.2-2 cluster using OvS for networking:

auto lo
iface lo inet loopback

auto enp2s0f0np0
iface enp2s0f0np0 inet manual
        mtu 9000

auto enp2s0f1np1
iface enp2s0f1np1 inet manual
        mtu 9000

auto vlan1
iface vlan1 inet static
        address 172.18.0.13/24
        gateway 172.18.0.1
        ovs_type OVSIntPort
        ovs_bridge vmbr0
        ovs_mtu 1500
        ovs_options tag=1

auto vlan10
iface vlan10 inet static
        address 172.18.10.13/24
        ovs_type OVSIntPort
        ovs_bridge vmbr0
        ovs_mtu 1500
        ovs_options tag=10

auto vlan13
iface vlan13 inet static
        address 172.18.13.13/24
        ovs_type OVSIntPort
        ovs_bridge vmbr0
        ovs_options tag=13

auto bond0
iface bond0 inet manual
        ovs_bonds enp2s0f0np0 enp2s0f1np1
        ovs_type OVSBond
        ovs_bridge vmbr0
        ovs_mtu 9000
        ovs_options other_config:lacp-time=fast lacp=active bond_mode=balance-tcp

auto vmbr0
iface vmbr0 inet manual
        ovs_type OVSBridge
        ovs_ports bond0 vlan1 vlan10 vlan13
        ovs_mtu 9000

So the Proxmox Host is reachable via 172.18.0.13 with vlan1 interface that's connected to vmbr0. Works as expected, gateway 172.18.0.1 is reachable. Same with the other 2 Proxmox Hosts using IPs 172.18.0.11 and 172.18.0.12.

Now I created a VM and attached the VM network to vmbr0 and tagged it with ID 1.

# cat 101.conf
affinity: 6-13
agent: 1
balloon: 0
bios: ovmf
boot: order=scsi0;net0
cores: 2
cpu: host
efidisk0: T1:vm-101-disk-0,efitype=4m,pre-enrolled-keys=1,size=1M
machine: q35
memory: 4096
meta: creation-qemu=8.1.5,ctime=1714031434
name: test-1
net0: virtio=BC:24:11:D7:D9:DC,bridge=vmbr0,tag=1
numa: 1
ostype: l26
scsi0: T1:vm-101-disk-1,iothread=1,size=32G,ssd=1
scsihw: virtio-scsi-single
smbios1: uuid=3949937a-ecd1-4810-b9c7-6e7fc8fb1f6c
sockets: 1
vmgenid: f27fd578-014e-4571-82a8-6cb8c9bfb183

The VM network interface is configured with IP 172.18.0.51/24. It can't reach the gateway 172.18.0.1 but the Proxmox' Host IPs 172.18.0.11-172.18.0.13.

Can someone tell me what I'm missing here?

 

[AristonPost]

As there are more than one way to get things done, I created a SDN VNet "VLAN1" and attached this without a tag instead of vmbr0 to the VM.

root@Alpha:/etc/pve/sdn# cat zones.cfg
vlan: INT
        bridge vmbr0
        ipam pve
        nodes Charlie,Alpha,Bravo

root@Alpha:/etc/pve/sdn# cat vnets.cfg
vnet: VLAN10
        zone INT
        tag 10

vnet: VLAN1
        zone INT
        tag 1

root@Alpha:/etc/pve/sdn#

The result is exactly the same