[ 1223.334599][T11140] netdevsim netdevsim509 eni509np1: renamed from eth0
[ 1223.355794][T11139] netdevsim netdevsim748 eni748np1: renamed from eth1
[ 1226.679054][T11132] Could not find device with ifindex 2000 in netnsfd 11
[ 1226.679897][T11132] Could not find netns with fd: 2000
[ 1226.680443][T11132] Cannot link a netdevsim to itself
[ 1226.681198][T11132] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).