[  486.011863] netdevsim netdevsim552 eni552np1: renamed from eth1
[  486.108328] netdevsim netdevsim305 eni305np1: renamed from eth0
[  486.317985] Could not find device with ifindex 2000 in netnsfd 11
[  486.318287] Could not find netns with fd: 2000
[  486.318382] Cannot link a netdevsim to itself
[  486.318488] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).