[  488.974828] netdevsim netdevsim461 eni461np1: renamed from eth0
[  489.076563] netdevsim netdevsim686 eni686np1: renamed from eth1
[  489.422549] Could not find device with ifindex 2000 in netnsfd 11
[  489.422701] Could not find netns with fd: 2000
[  489.422784] Cannot link a netdevsim to itself
[  489.422896] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).