[  523.810799] netdevsim netdevsim278 eni278np1: renamed from eth0
[  523.907018] netdevsim netdevsim615 eni615np1: renamed from eth1
[  524.175699] Could not find device with ifindex 2000 in netnsfd 11
[  524.175874] Could not find netns with fd: 2000
[  524.175953] Cannot link a netdevsim to itself
[  524.176047] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).