[  513.021773] netdevsim netdevsim620 eni620np1: renamed from eth1
[  513.119532] netdevsim netdevsim418 eni418np1: renamed from eth0
[  513.311820] Could not find device with ifindex 2000 in netnsfd 11
[  513.311985] Could not find netns with fd: 2000
[  513.312056] Cannot link a netdevsim to itself
[  513.312142] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).