[  751.537340][T14587] netdevsim netdevsim274 eni274np1: renamed from eth0
[  751.542157][T14589] netdevsim netdevsim535 eni535np1: renamed from eth1
[  752.094826][T14575] Could not find device with ifindex 2000 in netnsfd 11
[  752.095310][T14575] Could not find netns with fd: 2000
[  752.095819][T14575] Cannot link a netdevsim to itself
[  752.096220][T14575] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).