[  484.312676] netdevsim netdevsim272 eni272np1: renamed from eth0
[  484.314854] netdevsim netdevsim562 eni562np1: renamed from eth1
[  484.712428] Could not find device with ifindex 2000 in netnsfd 11
[  484.712579] Could not find netns with fd: 2000
[  484.712664] Cannot link a netdevsim to itself
[  484.712760] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).