[  457.456768] netdevsim netdevsim385 eni385np1: renamed from eth0
[  457.457444] netdevsim netdevsim634 eni634np1: renamed from eth1
[  457.559921] Could not find device with ifindex 2000 in netnsfd 11
[  457.560124] Could not find netns with fd: 2000
[  457.560252] Cannot link a netdevsim to itself
[  457.560379] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).