[ 1043.193419][T12765] netdevsim netdevsim450 eni450np1: renamed from eth0
[ 1043.319199][T12763] netdevsim netdevsim512 eni512np1: renamed from eth1
[ 1045.147665][T12757] Could not find device with ifindex 2000 in netnsfd 11
[ 1045.148931][T12757] Could not find netns with fd: 2000
[ 1045.149648][T12757] Cannot link a netdevsim to itself
[ 1045.150431][T12757] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).