[  489.162095] netdevsim netdevsim767 eni767np1: renamed from eth1
[  489.259275] netdevsim netdevsim261 eni261np1: renamed from eth0
[  489.460780] Could not find device with ifindex 2000 in netnsfd 11
[  489.460979] Could not find netns with fd: 2000
[  489.461070] Cannot link a netdevsim to itself
[  489.461194] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).