[  456.975753] netdevsim netdevsim564 eni564np1: renamed from eth1
[  456.976381] netdevsim netdevsim417 eni417np1: renamed from eth0
[  457.074944] Could not find device with ifindex 2000 in netnsfd 11
[  457.075080] Could not find netns with fd: 2000
[  457.075172] Cannot link a netdevsim to itself
[  457.075278] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).