[  518.972462] netdevsim netdevsim452 eni452np1: renamed from eth0
[  519.069469] netdevsim netdevsim587 eni587np1: renamed from eth1
[  519.300830] Could not find device with ifindex 2000 in netnsfd 11
[  519.301006] Could not find netns with fd: 2000
[  519.301105] Cannot link a netdevsim to itself
[  519.301208] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).