[  475.985150] netdevsim netdevsim303 eni303np1: renamed from eth0
[  475.985751] netdevsim netdevsim531 eni531np1: renamed from eth1
[  476.076438] Could not find device with ifindex 2000 in netnsfd 11
[  476.076524] Could not find netns with fd: 2000
[  476.076568] Cannot link a netdevsim to itself
[  476.076618] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).