[ 1232.473134][T11140] netdevsim netdevsim303 eni303np1: renamed from eth0
[ 1232.480916][T11139] netdevsim netdevsim670 eni670np1: renamed from eth1
[ 1235.813824][T11132] Could not find device with ifindex 2000 in netnsfd 11
[ 1235.814856][T11132] Could not find netns with fd: 2000
[ 1235.815405][T11132] Cannot link a netdevsim to itself
[ 1235.816073][T11132] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).