[  484.468303] netdevsim netdevsim260 eni260np1: renamed from eth0
[  484.569345] netdevsim netdevsim649 eni649np1: renamed from eth1
[  484.899287] Could not find device with ifindex 2000 in netnsfd 11
[  484.899438] Could not find netns with fd: 2000
[  484.899507] Cannot link a netdevsim to itself
[  484.899593] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).