[  524.447793] netdevsim netdevsim303 eni303np1: renamed from eth0
[  524.545048] netdevsim netdevsim745 eni745np1: renamed from eth1
[  524.777845] Could not find device with ifindex 2000 in netnsfd 11
[  524.778042] Could not find netns with fd: 2000
[  524.778163] Cannot link a netdevsim to itself
[  524.778301] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).