Comment 9 for bug 1945548

Trying this with

CID: 202109-29496
SKU: AAEON UPN-EHL01
Image used: ubuntu-core-20-amd64+intel-iot.img.xz (20211014.2)
kernel: 5.13.0-1007-intel

When plugging in both Ethernet ports, only one of them retrieves an IP:

$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 00:07:32:61:5b:08 brd ff:ff:ff:ff:ff:ff
3: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:07:32:61:5b:07 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.126/24 brd 192.168.1.255 scope global dynamic enp1s0
       valid_lft 86268sec preferred_lft 86268sec
    inet6 fe80::207:32ff:fe61:5b07/64 scope link
       valid_lft forever preferred_lft forever

Nothing happens in `dmesg -w` when I unplug/replug an Ethernet cable in enp2s0.