[  510.382734] netdevsim netdevsim636 eni636np1: renamed from eth1
[  510.480748] netdevsim netdevsim379 eni379np1: renamed from eth0
[  510.687459] Could not find device with ifindex 2000 in netnsfd 11
[  510.687616] Could not find netns with fd: 2000
[  510.687686] Cannot link a netdevsim to itself
[  510.687773] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).