[  813.524992][T15780] netdevsim netdevsim421 eni421np1: renamed from eth0
[  813.546633][T15778] netdevsim netdevsim585 eni585np1: renamed from eth1
[  814.149226][T15767] Could not find device with ifindex 2000 in netnsfd 11
[  814.150045][T15767] Could not find netns with fd: 2000
[  814.150572][T15767] Cannot link a netdevsim to itself
[  814.151102][T15767] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).