ovs-vsctl list-ports switch_c | xargs -n1 ip link show | grep mtu | column -t
ovs-vsctl: no bridge named switch_c
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq master ovs-system state UP mode DEFAULT group default qlen 1000
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq master ovs-system state UP mode DEFAULT group default qlen 1000
4: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
5: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
6: vlan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
7: vlan18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
8: vlan20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
9: vlan21: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
11: vlan2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
12: bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
13: ln_vnet4040: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vnet4040 state UNKNOWN mode DEFAULT group default qlen 1000
14: vnet4040: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UP mode DEFAULT group default qlen 1000
15: tap20101i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000
16: tap20101i1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000
17: tap20101i2: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000
18: tap20101i3: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000
19: tap20101i4: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000
20: tap20101i5: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master vnet4040 state UNKNOWN mode DEFAULT group default qlen 1000
22: z_qinq4040: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UP mode DEFAULT group default qlen 1000
23: z_qinq4040.20@z_qinq4040: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue master vnet20 state UP mode DEFAULT group default qlen 1000
24: vnet20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UP mode DEFAULT group default qlen 1000
25: tap20102i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000
26: tap20102i1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000
27: tap20102i2: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000
28: tap20102i3: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000
29: tap20102i4: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master ovs-system state UNKNOWN mode DEFAULT group default qlen 1000
30: tap20102i5: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master vnet20 state UNKNOWN mode DEFAULT group default qlen 1000
31: sv_qinq4040: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master z_qinq4040 state UNKNOWN mode DEFAULT group default qlen 1000
32: ln_vnet4041: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vnet4041 state UNKNOWN mode DEFAULT group default qlen 1000
33: vnet4041: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
root@pve00:~# ovs-vsctl get Port ln_vnet4040 vlan_mode
[]