[  456.416750] netdevsim netdevsim417 eni417np1: renamed from eth0
[  456.417458] netdevsim netdevsim567 eni567np1: renamed from eth1
[  456.513573] Could not find device with ifindex 2000 in netnsfd 11
[  456.513738] Could not find netns with fd: 2000
[  456.513806] Cannot link a netdevsim to itself
[  456.513872] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).