[  484.107093] netdevsim netdevsim503 eni503np1: renamed from eth0
[  484.107873] netdevsim netdevsim665 eni665np1: renamed from eth1
[  484.197585] Could not find device with ifindex 2000 in netnsfd 11
[  484.197674] Could not find netns with fd: 2000
[  484.197716] Cannot link a netdevsim to itself
[  484.197766] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).