[  479.454800] netdevsim netdevsim335 eni335np1: renamed from eth0
[  479.455341] netdevsim netdevsim659 eni659np1: renamed from eth1
[  479.539886] Could not find device with ifindex 2000 in netnsfd 11
[  479.539999] Could not find netns with fd: 2000
[  479.540055] Cannot link a netdevsim to itself
[  479.540118] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).