[  521.976158] netdevsim netdevsim591 eni591np1: renamed from eth1
[  522.073184] netdevsim netdevsim266 eni266np1: renamed from eth0
[  522.323360] Could not find device with ifindex 2000 in netnsfd 11
[  522.323546] Could not find netns with fd: 2000
[  522.323627] Cannot link a netdevsim to itself
[  522.323739] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).