[  486.023172] netdevsim netdevsim374 eni374np1: renamed from eth0
[  486.124103] netdevsim netdevsim748 eni748np1: renamed from eth1
[  486.478905] Could not find device with ifindex 2000 in netnsfd 11
[  486.479043] Could not find netns with fd: 2000
[  486.479114] Cannot link a netdevsim to itself
[  486.479219] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).