[  486.267480] netdevsim netdevsim349 eni349np1: renamed from eth0
[  486.369473] netdevsim netdevsim554 eni554np1: renamed from eth1
[  486.745501] Could not find device with ifindex 2000 in netnsfd 11
[  486.745637] Could not find netns with fd: 2000
[  486.745723] Cannot link a netdevsim to itself
[  486.745813] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).