[  492.523335] netdevsim netdevsim517 eni517np1: renamed from eth1
[  492.619214] netdevsim netdevsim412 eni412np1: renamed from eth0
[  492.857742] Could not find device with ifindex 2000 in netnsfd 11
[  492.858078] Could not find netns with fd: 2000
[  492.858169] Cannot link a netdevsim to itself
[  492.858272] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).