[  509.280223] netdevsim netdevsim427 eni427np1: renamed from eth0
[  509.377552] netdevsim netdevsim551 eni551np1: renamed from eth1
[  509.604696] Could not find device with ifindex 2000 in netnsfd 11
[  509.604870] Could not find netns with fd: 2000
[  509.604940] Cannot link a netdevsim to itself
[  509.605026] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).