[ 1031.273572][T12648] netdevsim netdevsim360 eni360np1: renamed from eth0 [ 1031.370289][T12582] netdevsim netdevsim747 eni747np1: renamed from eth1 [ 1033.231337][T12728] Could not find device with ifindex 2000 in netnsfd 11 [ 1033.232412][T12728] Could not find netns with fd: 2000 [ 1033.233215][T12728] Cannot link a netdevsim to itself [ 1033.234917][T12728] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).