[  475.632770] netdevsim netdevsim401 eni401np1: renamed from eth0
[  475.633093] netdevsim netdevsim614 eni614np1: renamed from eth1
[  475.726025] Could not find device with ifindex 2000 in netnsfd 11
[  475.726110] Could not find netns with fd: 2000
[  475.726153] Cannot link a netdevsim to itself
[  475.726204] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).