[  484.031788] netdevsim netdevsim299 eni299np1: renamed from eth0
[  484.133311] netdevsim netdevsim747 eni747np1: renamed from eth1
[  484.517372] Could not find device with ifindex 2000 in netnsfd 11
[  484.517516] Could not find netns with fd: 2000
[  484.517599] Cannot link a netdevsim to itself
[  484.517707] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).