[  491.973117] netdevsim netdevsim267 eni267np1: renamed from eth0
[  491.973470] netdevsim netdevsim729 eni729np1: renamed from eth1
[  492.070826] Could not find device with ifindex 2000 in netnsfd 11
[  492.071009] Could not find netns with fd: 2000
[  492.071134] Cannot link a netdevsim to itself
[  492.071277] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).