[  478.595334] netdevsim netdevsim390 eni390np1: renamed from eth0
[  478.595643] netdevsim netdevsim560 eni560np1: renamed from eth1
[  478.690041] Could not find device with ifindex 2000 in netnsfd 11
[  478.690137] Could not find netns with fd: 2000
[  478.690183] Cannot link a netdevsim to itself
[  478.690234] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).