[ 1028.288510][T12073] netdevsim netdevsim579 eni579np1: renamed from eth1 [ 1028.380387][T12074] netdevsim netdevsim359 eni359np1: renamed from eth0 [ 1030.270036][T12557] Could not find device with ifindex 2000 in netnsfd 11 [ 1030.271533][T12557] Could not find netns with fd: 2000 [ 1030.272672][T12557] Cannot link a netdevsim to itself [ 1030.273880][T12557] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).