[  490.130503] netdevsim netdevsim454 eni454np1: renamed from eth0
[  490.130929] netdevsim netdevsim613 eni613np1: renamed from eth1
[  490.233419] Could not find device with ifindex 2000 in netnsfd 11
[  490.233527] Could not find netns with fd: 2000
[  490.233578] Cannot link a netdevsim to itself
[  490.233629] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).