[ 1468.458868][T12742] netdevsim netdevsim390 eni390np1: renamed from eth0
[ 1468.462749][T12743] netdevsim netdevsim663 eni663np1: renamed from eth1
[ 1472.305710][T12734] Could not find device with ifindex 2000 in netnsfd 11
[ 1472.306494][T12734] Could not find netns with fd: 2000
[ 1472.307147][T12734] Cannot link a netdevsim to itself
[ 1472.308198][T12734] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).