[  851.509082][T14768] netdevsim netdevsim411 eni411np1: renamed from eth0
[  851.536405][T14770] netdevsim netdevsim556 eni556np1: renamed from eth1
[  852.265484][T14756] Could not find device with ifindex 2000 in netnsfd 11
[  852.266401][T14756] Could not find netns with fd: 2000
[  852.266815][T14756] Cannot link a netdevsim to itself
[  852.267290][T14756] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).