[  493.622489] netdevsim netdevsim257 eni257np1: renamed from eth0
[  493.718934] netdevsim netdevsim758 eni758np1: renamed from eth1
[  493.940712] Could not find device with ifindex 2000 in netnsfd 11
[  493.941077] Could not find netns with fd: 2000
[  493.941180] Cannot link a netdevsim to itself
[  493.941292] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).