[ 1224.051955][T11148] netdevsim netdevsim729 eni729np1: renamed from eth1
[ 1224.073209][T11150] netdevsim netdevsim456 eni456np1: renamed from eth0
[ 1227.412266][T11142] Could not find device with ifindex 2000 in netnsfd 11
[ 1227.413078][T11142] Could not find netns with fd: 2000
[ 1227.413818][T11142] Cannot link a netdevsim to itself
[ 1227.414580][T11142] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).