[  454.966895] netdevsim netdevsim497 eni497np1: renamed from eth0
[  454.967243] netdevsim netdevsim642 eni642np1: renamed from eth1
[  455.050367] Could not find device with ifindex 2000 in netnsfd 11
[  455.050473] Could not find netns with fd: 2000
[  455.050526] Cannot link a netdevsim to itself
[  455.050585] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).