[  513.952443] netdevsim netdevsim739 eni739np1: renamed from eth1
[  514.049697] netdevsim netdevsim444 eni444np1: renamed from eth0
[  514.247979] Could not find device with ifindex 2000 in netnsfd 11
[  514.248196] Could not find netns with fd: 2000
[  514.248295] Cannot link a netdevsim to itself
[  514.248416] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).