[  485.852907] netdevsim netdevsim648 eni648np1: renamed from eth1
[  485.953094] netdevsim netdevsim294 eni294np1: renamed from eth0
[  486.320580] Could not find device with ifindex 2000 in netnsfd 11
[  486.320767] Could not find netns with fd: 2000
[  486.320841] Cannot link a netdevsim to itself
[  486.320927] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).