[ 1029.752215][T12749] netdevsim netdevsim531 eni531np1: renamed from eth1
[ 1029.856382][T12751] netdevsim netdevsim332 eni332np1: renamed from eth0
[ 1031.663039][T12743] Could not find device with ifindex 2000 in netnsfd 11
[ 1031.664104][T12743] Could not find netns with fd: 2000
[ 1031.664933][T12743] Cannot link a netdevsim to itself
[ 1031.665925][T12743] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).