[  485.946639] netdevsim netdevsim499 eni499np1: renamed from eth0
[  485.946857] netdevsim netdevsim643 eni643np1: renamed from eth1
[  486.036925] Could not find device with ifindex 2000 in netnsfd 11
[  486.037014] Could not find netns with fd: 2000
[  486.037055] Cannot link a netdevsim to itself
[  486.037105] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).