[  764.162358][T14638] netdevsim netdevsim453 eni453np1: renamed from eth0
[  764.181141][T14641] netdevsim netdevsim520 eni520np1: renamed from eth1
[  764.794429][T14626] Could not find device with ifindex 2000 in netnsfd 11
[  764.794946][T14626] Could not find netns with fd: 2000
[  764.795644][T14626] Cannot link a netdevsim to itself
[  764.796143][T14626] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).