[  523.873435] netdevsim netdevsim512 eni512np1: renamed from eth1
[  523.969731] netdevsim netdevsim364 eni364np1: renamed from eth0
[  524.195514] Could not find device with ifindex 2000 in netnsfd 11
[  524.195717] Could not find netns with fd: 2000
[  524.195803] Cannot link a netdevsim to itself
[  524.195905] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).