[  512.705445] netdevsim netdevsim624 eni624np1: renamed from eth1
[  512.803027] netdevsim netdevsim340 eni340np1: renamed from eth0
[  512.994725] Could not find device with ifindex 2000 in netnsfd 11
[  512.994882] Could not find netns with fd: 2000
[  512.994953] Cannot link a netdevsim to itself
[  512.995039] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).