[  523.158690] netdevsim netdevsim341 eni341np1: renamed from eth0
[  523.255792] netdevsim netdevsim615 eni615np1: renamed from eth1
[  523.482735] Could not find device with ifindex 2000 in netnsfd 11
[  523.482935] Could not find netns with fd: 2000
[  523.483032] Cannot link a netdevsim to itself
[  523.483147] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).