[  853.411918][T15801] netdevsim netdevsim336 eni336np1: renamed from eth0
[  853.439030][T15799] netdevsim netdevsim637 eni637np1: renamed from eth1
[  854.199822][T15788] Could not find device with ifindex 2000 in netnsfd 11
[  854.200961][T15788] Could not find netns with fd: 2000
[  854.201698][T15788] Cannot link a netdevsim to itself
[  854.202315][T15788] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).