[  486.262319] netdevsim netdevsim491 eni491np1: renamed from eth0
[  486.363096] netdevsim netdevsim529 eni529np1: renamed from eth1
[  486.734603] Could not find device with ifindex 2000 in netnsfd 11
[  486.734767] Could not find netns with fd: 2000
[  486.734855] Cannot link a netdevsim to itself
[  486.734970] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).