[  846.037916][ T9680] netdevsim netdevsim599 eni599np1: renamed from eth1
[  846.098798][ T9686] netdevsim netdevsim461 eni461np1: renamed from eth0
[  847.765120][ T9675] Could not find device with ifindex 2000 in netnsfd 11
[  847.766019][ T9675] Could not find netns with fd: 2000
[  847.766635][ T9675] Cannot link a netdevsim to itself
[  847.767416][ T9675] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).