[  485.078248] netdevsim netdevsim604 eni604np1: renamed from eth1
[  485.174192] netdevsim netdevsim504 eni504np1: renamed from eth0
[  485.387897] Could not find device with ifindex 2000 in netnsfd 11
[  485.388272] Could not find netns with fd: 2000
[  485.388385] Cannot link a netdevsim to itself
[  485.388515] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).