[  509.661214] netdevsim netdevsim341 eni341np1: renamed from eth0
[  509.758905] netdevsim netdevsim680 eni680np1: renamed from eth1
[  509.970640] Could not find device with ifindex 2000 in netnsfd 11
[  509.970820] Could not find netns with fd: 2000
[  509.970911] Cannot link a netdevsim to itself
[  509.971014] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).