[  483.933926] netdevsim netdevsim400 eni400np1: renamed from eth0
[  484.035101] netdevsim netdevsim549 eni549np1: renamed from eth1
[  484.378288] Could not find device with ifindex 2000 in netnsfd 11
[  484.378415] Could not find netns with fd: 2000
[  484.378492] Cannot link a netdevsim to itself
[  484.378602] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).