[  829.902386][T15717] netdevsim netdevsim304 eni304np1: renamed from eth0
[  829.921637][T15718] netdevsim netdevsim656 eni656np1: renamed from eth1
[  830.565755][T15704] Could not find device with ifindex 2000 in netnsfd 11
[  830.566413][T15704] Could not find netns with fd: 2000
[  830.566880][T15704] Cannot link a netdevsim to itself
[  830.567404][T15704] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).