[PVE-User] VLAN to VNI translation

[PVE-User] VLAN to VNI translation

[Cyrus]

Hello!,

Before requesting something that might already be there...

Is it possible to translate a VNI to a VLAN towards a VM?.

Use case would be:

1. Define various VNETs in a EVPN zone (might apply to a VXLAN zone too) as
currently supported.
2. Define an optional VLAN tag for a VNET
3. Configure a port facing a VM as trunk (vlan aware?)
4. Deliver the VNETs as VLANs to the VM on that port.

I don't want to transport VLAN inside a VNI, I want to deliver VNETs as
VLAN to a guest which will be handling VLAN tagging/untagging. All the
transport between PVE VTEPs should be kept as is implemented today (VXLAN).

It would be VNI to VLAN translation or VNI/VLAN stitching + trunking
towards a VM.

Expectations: adding as many new networks as required to a VM without
adding a vNICs, with other VMs participating in such VNETs in access mode
and without touching physical switches (VLAN zone)

Regards.
Cyrus.
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Re: [PVE-User] VLAN to VNI translation

[DERUMIER, Alexandre]

It's not implemented currently, (1vxlan tunnel, with vlan->vni
mapping), because AFAIK it's still buggy with evpn && frr.

(the implementation exist, I have seen a lot of bug report)

https://docs.frrouting.org/en/latest/zebra.html#single-vxlan-device-support



I'll try to re-evaluate it for pve9  







-------- Message initial --------
De: Cyrus <cyruspy@gmail.com>
Répondre à: Proxmox VE user list <pve-user@lists.proxmox.com>
À: Proxmox VE user list <pve-user@lists.proxmox.com>
Objet: [PVE-User] VLAN to VNI translation
Date: 15/03/2025 12:03:36

Hello!,

Before requesting something that might already be there...

Is it possible to translate a VNI to a VLAN towards a VM?.

Use case would be:

1. Define various VNETs in a EVPN zone (might apply to a VXLAN zone
too) as
currently supported.
2. Define an optional VLAN tag for a VNET
3. Configure a port facing a VM as trunk (vlan aware?)
4. Deliver the VNETs as VLANs to the VM on that port.

I don't want to transport VLAN inside a VNI, I want to deliver VNETs as
VLAN to a guest which will be handling VLAN tagging/untagging. All the
transport between PVE VTEPs should be kept as is implemented today
(VXLAN).

It would be VNI to VLAN translation or VNI/VLAN stitching + trunking
towards a VM.

Expectations: adding as many new networks as required to a VM without
adding a vNICs, with other VMs participating in such VNETs in access
mode
and without touching physical switches (VLAN zone)

Regards.
Cyrus.
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