[  508.803122] netdevsim netdevsim356 eni356np1: renamed from eth0
[  508.901205] netdevsim netdevsim687 eni687np1: renamed from eth1
[  509.087686] Could not find device with ifindex 2000 in netnsfd 11
[  509.087864] Could not find netns with fd: 2000
[  509.087960] Cannot link a netdevsim to itself
[  509.088062] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).