[  849.538335][T15855] netdevsim netdevsim474 eni474np1: renamed from eth0
[  849.549007][T15853] netdevsim netdevsim656 eni656np1: renamed from eth1
[  850.271667][T15841] Could not find device with ifindex 2000 in netnsfd 11
[  850.272320][T15841] Could not find netns with fd: 2000
[  850.272803][T15841] Cannot link a netdevsim to itself
[  850.273332][T15841] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).