[ 1319.467736][T13150] netdevsim netdevsim639 eni639np1: renamed from eth1
[ 1319.557448][T13152] netdevsim netdevsim319 eni319np1: renamed from eth0
[ 1322.169573][T13139] Could not find device with ifindex 2000 in netnsfd 11
[ 1322.171234][T13139] Could not find netns with fd: 2000
[ 1322.172162][T13139] Cannot link a netdevsim to itself
[ 1322.173811][T13139] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).