[  472.392155] netdevsim netdevsim373 eni373np1: renamed from eth0
[  472.392934] netdevsim netdevsim644 eni644np1: renamed from eth1
[  472.466816] Could not find device with ifindex 2000 in netnsfd 11
[  472.466902] Could not find netns with fd: 2000
[  472.466949] Cannot link a netdevsim to itself
[  472.466999] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).