[  571.755538] netdevsim netdevsim317 eni317np1: renamed from eth0
[  571.852025] netdevsim netdevsim684 eni684np1: renamed from eth1
[  572.087841] Could not find device with ifindex 2000 in netnsfd 11
[  572.088039] Could not find netns with fd: 2000
[  572.088116] Cannot link a netdevsim to itself
[  572.088209] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).