[  520.991872] netdevsim netdevsim440 eni440np1: renamed from eth0
[  521.089553] netdevsim netdevsim725 eni725np1: renamed from eth1
[  521.300612] Could not find device with ifindex 2000 in netnsfd 11
[  521.300773] Could not find netns with fd: 2000
[  521.300859] Cannot link a netdevsim to itself
[  521.300958] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).