[  522.576743] netdevsim netdevsim647 eni647np1: renamed from eth1
[  522.673199] netdevsim netdevsim387 eni387np1: renamed from eth0
[  522.945327] Could not find device with ifindex 2000 in netnsfd 11
[  522.945569] Could not find netns with fd: 2000
[  522.945694] Cannot link a netdevsim to itself
[  522.945814] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).