[ 1022.434149][T12583] netdevsim netdevsim642 eni642np1: renamed from eth1
[ 1022.536076][T12632] netdevsim netdevsim447 eni447np1: renamed from eth0
[ 1024.440241][T12627] Could not find device with ifindex 2000 in netnsfd 11
[ 1024.441270][T12627] Could not find netns with fd: 2000
[ 1024.442023][T12627] Cannot link a netdevsim to itself
[ 1024.443056][T12627] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).