[  523.398361] netdevsim netdevsim552 eni552np1: renamed from eth1
[  523.495999] netdevsim netdevsim377 eni377np1: renamed from eth0
[  523.702572] Could not find device with ifindex 2000 in netnsfd 11
[  523.702740] Could not find netns with fd: 2000
[  523.702831] Cannot link a netdevsim to itself
[  523.702922] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).