[  482.020101] netdevsim netdevsim346 eni346np1: renamed from eth0
[  482.121978] netdevsim netdevsim621 eni621np1: renamed from eth1
[  482.456211] Could not find device with ifindex 2000 in netnsfd 11
[  482.456365] Could not find netns with fd: 2000
[  482.456449] Cannot link a netdevsim to itself
[  482.456563] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).