[  484.543812] netdevsim netdevsim525 eni525np1: renamed from eth1
[  484.644242] netdevsim netdevsim505 eni505np1: renamed from eth0
[  485.008150] Could not find device with ifindex 2000 in netnsfd 11
[  485.008289] Could not find netns with fd: 2000
[  485.008362] Cannot link a netdevsim to itself
[  485.008464] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).