[  872.084028][T15844] netdevsim netdevsim634 eni634np1: renamed from eth1
[  872.088331][T15847] netdevsim netdevsim384 eni384np1: renamed from eth0
[  872.889175][T15833] Could not find device with ifindex 2000 in netnsfd 11
[  872.889903][T15833] Could not find netns with fd: 2000
[  872.890435][T15833] Cannot link a netdevsim to itself
[  872.890975][T15833] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).