[  521.009075] netdevsim netdevsim446 eni446np1: renamed from eth0
[  521.107057] netdevsim netdevsim763 eni763np1: renamed from eth1
[  521.314597] Could not find device with ifindex 2000 in netnsfd 11
[  521.314750] Could not find netns with fd: 2000
[  521.314835] Cannot link a netdevsim to itself
[  521.314935] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).