[  769.542097][T14569] netdevsim netdevsim342 eni342np1: renamed from eth0
[  769.559172][T14572] netdevsim netdevsim518 eni518np1: renamed from eth1
[  770.122815][T14557] Could not find device with ifindex 2000 in netnsfd 11
[  770.123378][T14557] Could not find netns with fd: 2000
[  770.123941][T14557] Cannot link a netdevsim to itself
[  770.124468][T14557] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).