[  472.689075] netdevsim netdevsim349 eni349np1: renamed from eth0
[  472.689692] netdevsim netdevsim638 eni638np1: renamed from eth1
[  472.764787] Could not find device with ifindex 2000 in netnsfd 11
[  472.764892] Could not find netns with fd: 2000
[  472.764936] Cannot link a netdevsim to itself
[  472.764986] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).