[  740.000728][T13076] netdevsim netdevsim291 eni291np1: renamed from eth0
[  740.056159][T13078] netdevsim netdevsim555 eni555np1: renamed from eth1
[  740.738963][T13064] Could not find device with ifindex 2000 in netnsfd 11
[  740.739849][T13064] Could not find netns with fd: 2000
[  740.740242][T13064] Cannot link a netdevsim to itself
[  740.740744][T13064] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).