[  455.181878] netdevsim netdevsim338 eni338np1: renamed from eth0
[  455.182728] netdevsim netdevsim631 eni631np1: renamed from eth1
[  455.272551] Could not find device with ifindex 2000 in netnsfd 11
[  455.272669] Could not find netns with fd: 2000
[  455.272715] Cannot link a netdevsim to itself
[  455.272767] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).