[  522.633528] netdevsim netdevsim635 eni635np1: renamed from eth1
[  522.730574] netdevsim netdevsim405 eni405np1: renamed from eth0
[  522.945226] Could not find device with ifindex 2000 in netnsfd 11
[  522.945378] Could not find netns with fd: 2000
[  522.945459] Cannot link a netdevsim to itself
[  522.945555] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).