[  475.954203] netdevsim netdevsim303 eni303np1: renamed from eth0
[  475.955081] netdevsim netdevsim710 eni710np1: renamed from eth0
[  476.047665] Could not find device with ifindex 2000 in netnsfd 11
[  476.047818] Could not find netns with fd: 2000
[  476.047929] Cannot link a netdevsim to itself
[  476.048046] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).