[  513.797424] netdevsim netdevsim563 eni563np1: renamed from eth1
[  513.894599] netdevsim netdevsim339 eni339np1: renamed from eth0
[  514.130174] Could not find device with ifindex 2000 in netnsfd 11
[  514.130424] Could not find netns with fd: 2000
[  514.130543] Cannot link a netdevsim to itself
[  514.130675] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).