[  512.369474] netdevsim netdevsim445 eni445np1: renamed from eth0
[  512.467521] netdevsim netdevsim567 eni567np1: renamed from eth1
[  512.643770] Could not find device with ifindex 2000 in netnsfd 11
[  512.643963] Could not find netns with fd: 2000
[  512.644064] Cannot link a netdevsim to itself
[  512.644177] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).