[  497.131685] netdevsim netdevsim334 eni334np1: renamed from eth0
[  497.132724] netdevsim netdevsim514 eni514np1: renamed from eth0
[  497.218364] Could not find device with ifindex 2000 in netnsfd 11
[  497.218489] Could not find netns with fd: 2000
[  497.218548] Cannot link a netdevsim to itself
[  497.218622] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).