[ 1040.389945][T12748] netdevsim netdevsim668 eni668np1: renamed from eth1
[ 1040.496723][T12749] netdevsim netdevsim450 eni450np1: renamed from eth0
[ 1042.291111][T12741] Could not find device with ifindex 2000 in netnsfd 11
[ 1042.292166][T12741] Could not find netns with fd: 2000
[ 1042.292816][T12741] Cannot link a netdevsim to itself
[ 1042.293587][T12741] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).