[ 1273.016477][T12848] netdevsim netdevsim669 eni669np1: renamed from eth1
[ 1273.150156][T12851] netdevsim netdevsim461 eni461np1: renamed from eth0
[ 1275.807055][T12838] Could not find device with ifindex 2000 in netnsfd 11
[ 1275.809176][T12838] Could not find netns with fd: 2000
[ 1275.810313][T12838] Cannot link a netdevsim to itself
[ 1275.812104][T12838] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).