[  486.452832] netdevsim netdevsim433 eni433np1: renamed from eth0
[  486.549304] netdevsim netdevsim631 eni631np1: renamed from eth1
[  486.751772] Could not find device with ifindex 2000 in netnsfd 11
[  486.751999] Could not find netns with fd: 2000
[  486.752084] Cannot link a netdevsim to itself
[  486.752171] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).