[  484.771807] netdevsim netdevsim516 eni516np1: renamed from eth1
[  484.771980] netdevsim netdevsim342 eni342np1: renamed from eth0
[  484.864875] Could not find device with ifindex 2000 in netnsfd 11
[  484.865027] Could not find netns with fd: 2000
[  484.865134] Cannot link a netdevsim to itself
[  484.865249] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).