[  486.565275] netdevsim netdevsim515 eni515np1: renamed from eth1
[  486.662100] netdevsim netdevsim270 eni270np1: renamed from eth0
[  486.857926] Could not find device with ifindex 2000 in netnsfd 11
[  486.858128] Could not find netns with fd: 2000
[  486.858222] Cannot link a netdevsim to itself
[  486.858345] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).