[  523.742937] netdevsim netdevsim340 eni340np1: renamed from eth0
[  523.840665] netdevsim netdevsim603 eni603np1: renamed from eth1
[  524.065889] Could not find device with ifindex 2000 in netnsfd 11
[  524.066077] Could not find netns with fd: 2000
[  524.066185] Cannot link a netdevsim to itself
[  524.066295] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).