[  477.539583] netdevsim netdevsim281 eni281np1: renamed from eth0
[  477.540466] netdevsim netdevsim741 eni741np1: renamed from eth1
[  477.630800] Could not find device with ifindex 2000 in netnsfd 11
[  477.630973] Could not find netns with fd: 2000
[  477.631094] Cannot link a netdevsim to itself
[  477.631237] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).