[ 1027.296466][T12650] netdevsim netdevsim620 eni620np1: renamed from eth1
[ 1027.426881][T12652] netdevsim netdevsim323 eni323np1: renamed from eth0
[ 1029.296099][T12644] Could not find device with ifindex 2000 in netnsfd 11
[ 1029.297346][T12644] Could not find netns with fd: 2000
[ 1029.298219][T12644] Cannot link a netdevsim to itself
[ 1029.299426][T12644] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).