[ 1450.138050][T12607] netdevsim netdevsim505 eni505np1: renamed from eth0
[ 1450.163222][T12605] netdevsim netdevsim639 eni639np1: renamed from eth1
[ 1454.156576][T12599] Could not find device with ifindex 2000 in netnsfd 11
[ 1454.157381][T12599] Could not find netns with fd: 2000
[ 1454.158020][T12599] Cannot link a netdevsim to itself
[ 1454.158758][T12599] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).