[ 1025.690932][T12689] netdevsim netdevsim609 eni609np1: renamed from eth1
[ 1025.795307][T12738] netdevsim netdevsim421 eni421np1: renamed from eth0
[ 1027.546560][T12733] Could not find device with ifindex 2000 in netnsfd 11
[ 1027.547970][T12733] Could not find netns with fd: 2000
[ 1027.549039][T12733] Cannot link a netdevsim to itself
[ 1027.550392][T12733] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).