[  490.350703] netdevsim netdevsim637 eni637np1: renamed from eth1
[  490.448170] netdevsim netdevsim413 eni413np1: renamed from eth0
[  490.651869] Could not find device with ifindex 2000 in netnsfd 11
[  490.652103] Could not find netns with fd: 2000
[  490.652220] Cannot link a netdevsim to itself
[  490.652377] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).