[  521.609160] netdevsim netdevsim467 eni467np1: renamed from eth0
[  521.705718] netdevsim netdevsim766 eni766np1: renamed from eth1
[  521.958748] Could not find device with ifindex 2000 in netnsfd 11
[  521.958999] Could not find netns with fd: 2000
[  521.959114] Cannot link a netdevsim to itself
[  521.959255] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).