[  537.333537] netdevsim netdevsim379 eni379np1: renamed from eth0
[  537.433713] netdevsim netdevsim767 eni767np1: renamed from eth1
[  537.776505] Could not find device with ifindex 2000 in netnsfd 11
[  537.776646] Could not find netns with fd: 2000
[  537.776726] Cannot link a netdevsim to itself
[  537.776808] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).