[ 1021.476634][T12067] netdevsim netdevsim456 eni456np1: renamed from eth0
[ 1021.481808][T12131] netdevsim netdevsim759 eni759np1: renamed from eth1
[ 1023.341444][T12552] Could not find device with ifindex 2000 in netnsfd 11
[ 1023.342394][T12552] Could not find netns with fd: 2000
[ 1023.343049][T12552] Cannot link a netdevsim to itself
[ 1023.343854][T12552] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).