Add dedicated bridge for jumboframes (MTU=9000)

[rene.k]

Hallo all,

currently I run the following network settings for the public interface:

auto ens8f1
iface ens8f1 inet manual
#10GbE 560SFP+

auto ens7f1
iface ens7f1 inet manual
#10GbE X540-T

auto bond1
iface bond1 inet manual
        bond-slaves ens7f1 ens8f1
        bond-miimon 100
        bond-mode 802.3ad
        bond-xmit-hash-policy layer2+3

auto vmbr0
iface vmbr0 inet static
        address 172.16.0.229/16
        gateway 172.16.0.12
        bridge-ports bond1
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094
#10GbE Public

Now I want to use MTU=9000 for one specific VM.

Option 1: Set all interfaces to MTU=9000 and configure the MTU in each VM separately. But I don't want to reconfigure each VM, to just run one VM on MTU 9000.

Option 2: Is it possible to have two bridges on the same network device (vmbr0 with MTU = 1500 and vmbr1 with MTU = 9000)?


Thanks in advance!
René