[  489.790511] netdevsim netdevsim317 eni317np1: renamed from eth0
[  489.790889] netdevsim netdevsim661 eni661np1: renamed from eth1
[  489.882293] Could not find device with ifindex 2000 in netnsfd 11
[  489.882394] Could not find netns with fd: 2000
[  489.882437] Cannot link a netdevsim to itself
[  489.882489] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).