[ 1219.671278][T12777] netdevsim netdevsim609 eni609np1: renamed from eth1
[ 1219.675435][T12780] netdevsim netdevsim509 eni509np1: renamed from eth0
[ 1222.162008][T12772] Could not find device with ifindex 2000 in netnsfd 11
[ 1222.163104][T12772] Could not find netns with fd: 2000
[ 1222.163948][T12772] Cannot link a netdevsim to itself
[ 1222.164984][T12772] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).