[ 1029.258172][T12734] netdevsim netdevsim257 eni257np1: renamed from eth0
[ 1029.330724][T12686] netdevsim netdevsim570 eni570np1: renamed from eth1
[ 1031.227973][T12730] Could not find device with ifindex 2000 in netnsfd 11
[ 1031.235927][T12730] Could not find netns with fd: 2000
[ 1031.236883][T12730] Cannot link a netdevsim to itself
[ 1031.245798][T12730] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).