1500 MTU on vlan-aware bridge where VLANs need to use 9000 MTU?

[Dunuin]

Hi,

Lets say my network config now looks like this...

auto lo
iface lo inet loopback

iface eno1 inet manual
        mtu 9000

auto vmbr0
iface vmbr0 inet manual
        address  10.0.0.2/24
        gateway  10.0.0.1
        bridge-ports eno1
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094
        mtu 9000

auto vmbr0.10
iface vmbr0.10 inet static
        address  10.0.10.2/24
        mtu 9000

...because PBS and other stuff on VLAN10 should be using an MTU of 9000 for better performance.
Setting MTU 9000 on vmbr0.10 requires vmbr0 + eno1 to be using a 9000 MTU as well.
What would I do if I wanted PVE to be using an MTU of 1500 on the 10.0.0.0/24 subnet of vmbr0 for gateway access as well as management?
Putting the management/gateway on another VLAN interface like "vmbr0.1" with an MTU of 1500 would work but I want those packets to be untagged.

 

[damo2929]

you need to set your bridge port and then change the MTU to 1500 if you want to attach it to VM's or containers else configure it as a vlan

Bridge

auto special
iface special inet static
        address  10.0.10.2/24
        bridge-ports vmbr0.10
        bridge-stp off
        bridge-fd 0
        mtu 1500

VLAN

auto special
iface special inet static
    address 10.10.10.10/24
    vlan-id 10
    vlan-raw-device vmbr0
    mtu 1500

 

[spirit]

Hi,

Lets say my network config now looks like this...

auto lo
iface lo inet loopback

iface eno1 inet manual
        mtu 9000

auto vmbr0
iface vmbr0 inet manual
        address  10.0.0.2/24
        gateway  10.0.0.1
        bridge-ports eno1
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094
        mtu 9000

auto vmbr0.10
iface vmbr0.10 inet static
        address  10.0.10.2/24
        mtu 9000

...because PBS and other stuff on VLAN10 should be using an MTU of 9000 for better performance.
Setting MTU 9000 on vmbr0.10 requires vmbr0 + eno1 to be using a 9000 MTU as well.
What would I do if I wanted PVE to be using an MTU of 1500 on the 10.0.0.0/24 subnet of vmbr0 for gateway access as well as management?
Putting the management/gateway on another VLAN interface like "vmbr0.1" with an MTU of 1500 would work but I want those packets to be untagged.

use differents vlan (vmbr0.X), with differents mtu. (but keep vmbr0 at mtu 9000). This is the only way.