[ 1234.106567][T11133] netdevsim netdevsim540 eni540np1: renamed from eth1
[ 1234.205384][T11135] netdevsim netdevsim409 eni409np1: renamed from eth0
[ 1237.621539][T11127] Could not find device with ifindex 2000 in netnsfd 11
[ 1237.622320][T11127] Could not find netns with fd: 2000
[ 1237.622955][T11127] Cannot link a netdevsim to itself
[ 1237.624040][T11127] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).