[  835.393944][T15812] netdevsim netdevsim472 eni472np1: renamed from eth0
[  835.409742][T15815] netdevsim netdevsim749 eni749np1: renamed from eth1
[  836.021022][T15800] Could not find device with ifindex 2000 in netnsfd 11
[  836.021661][T15800] Could not find netns with fd: 2000
[  836.022130][T15800] Cannot link a netdevsim to itself
[  836.022650][T15800] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).