[ 1021.009911][T12133] netdevsim netdevsim612 eni612np1: renamed from eth1
[ 1021.013076][T12065] netdevsim netdevsim451 eni451np1: renamed from eth0
[ 1022.846602][T12553] Could not find device with ifindex 2000 in netnsfd 11
[ 1022.847556][T12553] Could not find netns with fd: 2000
[ 1022.848250][T12553] Cannot link a netdevsim to itself
[ 1022.849024][T12553] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).