[  485.357424] netdevsim netdevsim399 eni399np1: renamed from eth0
[  485.458304] netdevsim netdevsim745 eni745np1: renamed from eth1
[  485.845002] Could not find device with ifindex 2000 in netnsfd 11
[  485.845165] Could not find netns with fd: 2000
[  485.845244] Cannot link a netdevsim to itself
[  485.845339] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).