[  491.617019] netdevsim netdevsim747 eni747np1: renamed from eth1
[  491.713291] netdevsim netdevsim278 eni278np1: renamed from eth0
[  491.950286] Could not find device with ifindex 2000 in netnsfd 11
[  491.950751] Could not find netns with fd: 2000
[  491.950852] Cannot link a netdevsim to itself
[  491.950975] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).