[ 1020.276564][T12136] netdevsim netdevsim601 eni601np1: renamed from eth1
[ 1020.375746][T12071] netdevsim netdevsim381 eni381np1: renamed from eth0
[ 1022.335181][T12559] Could not find device with ifindex 2000 in netnsfd 11
[ 1022.336196][T12559] Could not find netns with fd: 2000
[ 1022.336893][T12559] Cannot link a netdevsim to itself
[ 1022.337721][T12559] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).