[ 1038.769711][T12586] netdevsim netdevsim497 eni497np1: renamed from eth0
[ 1038.830730][T12587] netdevsim netdevsim540 eni540np1: renamed from eth1
[ 1040.623861][T12733] Could not find device with ifindex 2000 in netnsfd 11
[ 1040.624973][T12733] Could not find netns with fd: 2000
[ 1040.625788][T12733] Cannot link a netdevsim to itself
[ 1040.626711][T12733] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).