[  459.523490] netdevsim netdevsim648 eni648np1: renamed from eth1
[  459.523681] netdevsim netdevsim266 eni266np1: renamed from eth0
[  459.605889] Could not find device with ifindex 2000 in netnsfd 11
[  459.606002] Could not find netns with fd: 2000
[  459.606057] Cannot link a netdevsim to itself
[  459.606116] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).