[ 1238.907286][T11147] netdevsim netdevsim500 eni500np1: renamed from eth0
[ 1238.919137][T11145] netdevsim netdevsim623 eni623np1: renamed from eth1
[ 1242.204198][T11139] Could not find device with ifindex 2000 in netnsfd 11
[ 1242.204957][T11139] Could not find netns with fd: 2000
[ 1242.205588][T11139] Cannot link a netdevsim to itself
[ 1242.206312][T11139] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).