[  479.198196] netdevsim netdevsim260 eni260np1: renamed from eth0
[  479.198663] netdevsim netdevsim641 eni641np1: renamed from eth1
[  479.286560] Could not find device with ifindex 2000 in netnsfd 11
[  479.286676] Could not find netns with fd: 2000
[  479.286738] Cannot link a netdevsim to itself
[  479.286815] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).