[  456.670833] netdevsim netdevsim286 eni286np1: renamed from eth0
[  456.671232] netdevsim netdevsim552 eni552np1: renamed from eth1
[  456.758537] Could not find device with ifindex 2000 in netnsfd 11
[  456.758678] Could not find netns with fd: 2000
[  456.758793] Cannot link a netdevsim to itself
[  456.758919] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).