[  475.693490] netdevsim netdevsim304 eni304np1: renamed from eth0
[  475.694521] netdevsim netdevsim615 eni615np1: renamed from eth0
[  475.782776] Could not find device with ifindex 2000 in netnsfd 11
[  475.782905] Could not find netns with fd: 2000
[  475.783015] Cannot link a netdevsim to itself
[  475.783135] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).