[  521.034704] netdevsim netdevsim396 eni396np1: renamed from eth0
[  521.131541] netdevsim netdevsim713 eni713np1: renamed from eth1
[  521.352100] Could not find device with ifindex 2000 in netnsfd 11
[  521.352259] Could not find netns with fd: 2000
[  521.352331] Cannot link a netdevsim to itself
[  521.352419] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).