[ 1029.449329][T12647] netdevsim netdevsim721 eni721np1: renamed from eth1
[ 1029.547764][T12579] netdevsim netdevsim351 eni351np1: renamed from eth0
[ 1031.420330][T12724] Could not find device with ifindex 2000 in netnsfd 11
[ 1031.421395][T12724] Could not find netns with fd: 2000
[ 1031.422089][T12724] Cannot link a netdevsim to itself
[ 1031.429833][T12724] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).