[  456.398020] netdevsim netdevsim328 eni328np1: renamed from eth0
[  456.398777] netdevsim netdevsim751 eni751np1: renamed from eth1
[  456.490531] Could not find device with ifindex 2000 in netnsfd 11
[  456.490696] Could not find netns with fd: 2000
[  456.490815] Cannot link a netdevsim to itself
[  456.490950] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).