[  841.412008][T14791] netdevsim netdevsim453 eni453np1: renamed from eth0
[  841.446467][T14793] netdevsim netdevsim673 eni673np1: renamed from eth1
[  842.251411][T14779] Could not find device with ifindex 2000 in netnsfd 11
[  842.252365][T14779] Could not find netns with fd: 2000
[  842.252863][T14779] Cannot link a netdevsim to itself
[  842.253442][T14779] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).