[ 1243.971587][T11448] netdevsim netdevsim531 eni531np1: renamed from eth1
[ 1243.993043][T11449] netdevsim netdevsim434 eni434np1: renamed from eth0
[ 1247.397883][T11441] Could not find device with ifindex 2000 in netnsfd 11
[ 1247.398637][T11441] Could not find netns with fd: 2000
[ 1247.399303][T11441] Cannot link a netdevsim to itself
[ 1247.400097][T11441] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).