[  484.430219] netdevsim netdevsim673 eni673np1: renamed from eth1
[  484.530819] netdevsim netdevsim277 eni277np1: renamed from eth0
[  484.887215] Could not find device with ifindex 2000 in netnsfd 11
[  484.887412] Could not find netns with fd: 2000
[  484.887516] Cannot link a netdevsim to itself
[  484.887652] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).