[  487.723302] netdevsim netdevsim413 eni413np1: renamed from eth0
[  487.723684] netdevsim netdevsim637 eni637np1: renamed from eth1
[  487.797671] Could not find device with ifindex 2000 in netnsfd 11
[  487.797835] Could not find netns with fd: 2000
[  487.797942] Cannot link a netdevsim to itself
[  487.798066] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).