[  484.256846] netdevsim netdevsim256 eni256np1: renamed from eth0
[  484.357852] netdevsim netdevsim739 eni739np1: renamed from eth1
[  484.727601] Could not find device with ifindex 2000 in netnsfd 11
[  484.727770] Could not find netns with fd: 2000
[  484.727861] Cannot link a netdevsim to itself
[  484.727978] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).