[  483.952040] netdevsim netdevsim756 eni756np1: renamed from eth1
[  484.052910] netdevsim netdevsim448 eni448np1: renamed from eth0
[  484.410619] Could not find device with ifindex 2000 in netnsfd 11
[  484.410763] Could not find netns with fd: 2000
[  484.410841] Cannot link a netdevsim to itself
[  484.410932] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).