[  492.213115] netdevsim netdevsim284 eni284np1: renamed from eth0
[  492.309583] netdevsim netdevsim540 eni540np1: renamed from eth1
[  492.555703] Could not find device with ifindex 2000 in netnsfd 11
[  492.556038] Could not find netns with fd: 2000
[  492.556119] Cannot link a netdevsim to itself
[  492.556204] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).