[  811.045194][T15664] netdevsim netdevsim437 eni437np1: renamed from eth0
[  811.064413][T15662] netdevsim netdevsim733 eni733np1: renamed from eth1
[  811.732281][T15651] Could not find device with ifindex 2000 in netnsfd 11
[  811.733394][T15651] Could not find netns with fd: 2000
[  811.734066][T15651] Cannot link a netdevsim to itself
[  811.734715][T15651] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).