Br0 to guest is working buy why vnet0: state UNKNOWN

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1

I am using systemd-networkd with NetworkManager disabled.

The connections are working, just curious to know why the state of vnet0 is UNKNOWN as shown by ip link

$    ip -o link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000\    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp1s0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP mode DEFAULT group default qlen 1000\    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
3: wlp3s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000\    link/ether yy:yy:yy:yy:yy:yy brd ff:ff:ff:ff:ff:ff
4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000\    link/ether zz:zz:zz:zz:zz:zz brd ff:ff:ff:ff:ff:ff
5: vl103@br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000\    link/ether f6:76:7e:3b:78:77 brd ff:ff:ff:ff:ff:ff
6: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UNKNOWN mode DEFAULT group default qlen 1000\    link/ether ww:ww:ww:ww:ww:ww brd ff:ff:ff:ff:ff:ff
2

Because vnet0 is a virtual interface. I see the same on fedora with vnet0 and on my vpn with tun0.

3

So that means the UNKNOWN state does not indicate it is working or not working.

Thanks a lot!

4

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