[ 1423.146171][T12509] netdevsim netdevsim504 eni504np1: renamed from eth0
[ 1423.163428][T12508] netdevsim netdevsim694 eni694np1: renamed from eth1
[ 1426.662186][T12501] Could not find device with ifindex 2000 in netnsfd 11
[ 1426.663117][T12501] Could not find netns with fd: 2000
[ 1426.663774][T12501] Cannot link a netdevsim to itself
[ 1426.664592][T12501] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).