[  478.519008] netdevsim netdevsim278 eni278np1: renamed from eth0
[  478.519684] netdevsim netdevsim637 eni637np1: renamed from eth1
[  478.607193] Could not find device with ifindex 2000 in netnsfd 11
[  478.607308] Could not find netns with fd: 2000
[  478.607360] Cannot link a netdevsim to itself
[  478.607415] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).