[  522.905563] netdevsim netdevsim406 eni406np1: renamed from eth0
[  523.002343] netdevsim netdevsim752 eni752np1: renamed from eth1
[  523.263543] Could not find device with ifindex 2000 in netnsfd 11
[  523.263801] Could not find netns with fd: 2000
[  523.263919] Cannot link a netdevsim to itself
[  523.264075] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).