[  511.876086] netdevsim netdevsim404 eni404np1: renamed from eth0
[  511.973667] netdevsim netdevsim532 eni532np1: renamed from eth1
[  512.170466] Could not find device with ifindex 2000 in netnsfd 11
[  512.170614] Could not find netns with fd: 2000
[  512.170687] Cannot link a netdevsim to itself
[  512.170773] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).