[  493.874055] netdevsim netdevsim475 eni475np1: renamed from eth0
[  493.969755] netdevsim netdevsim528 eni528np1: renamed from eth1
[  494.222884] Could not find device with ifindex 2000 in netnsfd 11
[  494.223292] Could not find netns with fd: 2000
[  494.223416] Cannot link a netdevsim to itself
[  494.223556] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).