[  480.986961] netdevsim netdevsim638 eni638np1: renamed from eth1
[  481.087099] netdevsim netdevsim362 eni362np1: renamed from eth0
[  481.416065] Could not find device with ifindex 2000 in netnsfd 11
[  481.416179] Could not find netns with fd: 2000
[  481.416242] Cannot link a netdevsim to itself
[  481.416322] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).