[  486.201038] netdevsim netdevsim391 eni391np1: renamed from eth0
[  486.302427] netdevsim netdevsim758 eni758np1: renamed from eth1
[  486.657054] Could not find device with ifindex 2000 in netnsfd 11
[  486.657224] Could not find netns with fd: 2000
[  486.657314] Cannot link a netdevsim to itself
[  486.657418] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).