[ 1023.927607][T12653] netdevsim netdevsim639 eni639np1: renamed from eth1
[ 1023.943533][T12654] netdevsim netdevsim298 eni298np1: renamed from eth0
[ 1025.683611][T12646] Could not find device with ifindex 2000 in netnsfd 11
[ 1025.684798][T12646] Could not find netns with fd: 2000
[ 1025.685688][T12646] Cannot link a netdevsim to itself
[ 1025.686680][T12646] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).