vlan-x while on vlan-x and migration over to fortigate switches

Hello.

Within our proxmox environment we have several vlans.  The proxmox has several bonds with some of the interfaces configured as active/failover - such as the mgmt, and a separate bond for the vlan traffic. 

As it happens one of the vlans within the proxmox environment has the same vlan number as the switch.  By this I mean, the interface on bond0 is configured as the same vlan # that the servers have.  Obsivesily, the servers are 'tagged' within the proxmox environment to 'tag' traffic to/from other devices on that network.

Here's a breakdown -

Proxmox environment - native vlan is 10.  with an address of 10.0.1.x

On the switch network, which I'd like to configure the 'trunk', the default vlan is 10.

The proxmox manages traffic in/out off of the 2nd bond or interfaces, but as the servers are also 'set' to use vlan 10, how will this work?

It's almost like a 'nested' configuration with both interfaces using the same network - but not so as the proxmox handles vlan traffic 10 (as well as 11,12,53,etc) on the different network interfaces of the proxmox server.

If it can work, how would the trunk port on the fortigate be configured for the native vlan, something other than the "native vlan 10" network, and the 'allowed vlans' contain the 'vlan10' network?

thanks,