[ 1231.227276][T11138] netdevsim netdevsim731 eni731np1: renamed from eth1
[ 1231.336556][T11139] netdevsim netdevsim404 eni404np1: renamed from eth0
[ 1234.657150][T11131] Could not find device with ifindex 2000 in netnsfd 11
[ 1234.662986][T11131] Could not find netns with fd: 2000
[ 1234.663625][T11131] Cannot link a netdevsim to itself
[ 1234.664337][T11131] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).