[ 1223.432451][T12795] netdevsim netdevsim316 eni316np1: renamed from eth0
[ 1223.459766][T12794] netdevsim netdevsim645 eni645np1: renamed from eth1
[ 1226.083249][T12787] Could not find device with ifindex 2000 in netnsfd 11
[ 1226.084364][T12787] Could not find netns with fd: 2000
[ 1226.085208][T12787] Cannot link a netdevsim to itself
[ 1226.086262][T12787] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).