[  853.967891][T15848] netdevsim netdevsim434 eni434np1: renamed from eth0
[  853.995041][T15845] netdevsim netdevsim685 eni685np1: renamed from eth1
[  854.797503][T15834] Could not find device with ifindex 2000 in netnsfd 11
[  854.798685][T15834] Could not find netns with fd: 2000
[  854.800004][T15834] Cannot link a netdevsim to itself
[  854.800752][T15834] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).