[  479.623238] netdevsim netdevsim446 eni446np1: renamed from eth0
[  479.623735] netdevsim netdevsim631 eni631np1: renamed from eth1
[  479.725103] Could not find device with ifindex 2000 in netnsfd 11
[  479.725213] Could not find netns with fd: 2000
[  479.725266] Cannot link a netdevsim to itself
[  479.725322] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).