[  483.496561] netdevsim netdevsim505 eni505np1: renamed from eth0
[  483.497079] netdevsim netdevsim606 eni606np1: renamed from eth1
[  483.580513] Could not find device with ifindex 2000 in netnsfd 11
[  483.580611] Could not find netns with fd: 2000
[  483.580657] Cannot link a netdevsim to itself
[  483.580710] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).