[ 1457.135227][T12605] netdevsim netdevsim506 eni506np1: renamed from eth0
[ 1457.161383][T12603] netdevsim netdevsim668 eni668np1: renamed from eth1
[ 1460.876345][T12597] Could not find device with ifindex 2000 in netnsfd 11
[ 1460.877219][T12597] Could not find netns with fd: 2000
[ 1460.877875][T12597] Cannot link a netdevsim to itself
[ 1460.878599][T12597] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).