[  494.896285] netdevsim netdevsim746 eni746np1: renamed from eth1
[  494.991389] netdevsim netdevsim350 eni350np1: renamed from eth0
[  495.233312] Could not find device with ifindex 2000 in netnsfd 11
[  495.233639] Could not find netns with fd: 2000
[  495.233716] Cannot link a netdevsim to itself
[  495.233812] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).