[ 1295.578629][T13052] netdevsim netdevsim358 eni358np1: renamed from eth0 [ 1295.597495][T13051] netdevsim netdevsim565 eni565np1: renamed from eth1 [ 1298.463291][T13042] Could not find device with ifindex 2000 in netnsfd 11 [ 1298.465210][T13042] Could not find netns with fd: 2000 [ 1298.467544][T13042] Cannot link a netdevsim to itself [ 1298.469134][T13042] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).