[  480.519117] netdevsim netdevsim342 eni342np1: renamed from eth0
[  480.519756] netdevsim netdevsim658 eni658np1: renamed from eth1
[  480.610879] Could not find device with ifindex 2000 in netnsfd 11
[  480.610989] Could not find netns with fd: 2000
[  480.611043] Cannot link a netdevsim to itself
[  480.611107] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).