[  835.974311][T14809] netdevsim netdevsim393 eni393np1: renamed from eth0
[  836.015076][T14812] netdevsim netdevsim533 eni533np1: renamed from eth1
[  836.849592][T14797] Could not find device with ifindex 2000 in netnsfd 11
[  836.850481][T14797] Could not find netns with fd: 2000
[  836.850894][T14797] Cannot link a netdevsim to itself
[  836.851362][T14797] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).