[  458.252664] netdevsim netdevsim501 eni501np1: renamed from eth0
[  458.253340] netdevsim netdevsim655 eni655np1: renamed from eth1
[  458.333967] Could not find device with ifindex 2000 in netnsfd 11
[  458.334062] Could not find netns with fd: 2000
[  458.334106] Cannot link a netdevsim to itself
[  458.334155] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).