[  808.881450][T14777] netdevsim netdevsim420 eni420np1: renamed from eth0
[  808.896896][T14779] netdevsim netdevsim670 eni670np1: renamed from eth1
[  809.514996][T14765] Could not find device with ifindex 2000 in netnsfd 11
[  809.515854][T14765] Could not find netns with fd: 2000
[  809.516240][T14765] Cannot link a netdevsim to itself
[  809.516697][T14765] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).