[ 1014.315785][T12129] netdevsim netdevsim553 eni553np1: renamed from eth1 [ 1014.318607][T12065] netdevsim netdevsim262 eni262np1: renamed from eth0 [ 1016.212869][T12550] Could not find device with ifindex 2000 in netnsfd 11 [ 1016.213860][T12550] Could not find netns with fd: 2000 [ 1016.214597][T12550] Cannot link a netdevsim to itself [ 1016.215429][T12550] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).