[ 1244.428802][T11143] netdevsim netdevsim646 eni646np1: renamed from eth1
[ 1244.458642][T11144] netdevsim netdevsim321 eni321np1: renamed from eth0
[ 1247.974915][T11136] Could not find device with ifindex 2000 in netnsfd 11
[ 1247.975610][T11136] Could not find netns with fd: 2000
[ 1247.976375][T11136] Cannot link a netdevsim to itself
[ 1247.977063][T11136] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).