[  485.927925] netdevsim netdevsim277 eni277np1: renamed from eth0
[  486.029878] netdevsim netdevsim634 eni634np1: renamed from eth1
[  486.396554] Could not find device with ifindex 2000 in netnsfd 11
[  486.396724] Could not find netns with fd: 2000
[  486.396802] Cannot link a netdevsim to itself
[  486.396891] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).