[ 1023.674042][T12136] netdevsim netdevsim609 eni609np1: renamed from eth1
[ 1023.792981][T12132] netdevsim netdevsim261 eni261np1: renamed from eth0
[ 1025.643688][T12457] Could not find device with ifindex 2000 in netnsfd 11
[ 1025.644724][T12457] Could not find netns with fd: 2000
[ 1025.645467][T12457] Cannot link a netdevsim to itself
[ 1025.646267][T12457] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).