[  484.608559] netdevsim netdevsim540 eni540np1: renamed from eth1
[  484.704790] netdevsim netdevsim488 eni488np1: renamed from eth0
[  484.934587] Could not find device with ifindex 2000 in netnsfd 11
[  484.934808] Could not find netns with fd: 2000
[  484.934910] Cannot link a netdevsim to itself
[  484.935045] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).