[  479.398280] netdevsim netdevsim508 eni508np1: renamed from eth0
[  479.499673] netdevsim netdevsim653 eni653np1: renamed from eth1
[  479.847650] Could not find device with ifindex 2000 in netnsfd 11
[  479.847821] Could not find netns with fd: 2000
[  479.847916] Cannot link a netdevsim to itself
[  479.848026] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).