[  515.326549] netdevsim netdevsim600 eni600np1: renamed from eth1
[  515.423619] netdevsim netdevsim356 eni356np1: renamed from eth0
[  515.641749] Could not find device with ifindex 2000 in netnsfd 11
[  515.641937] Could not find netns with fd: 2000
[  515.642032] Cannot link a netdevsim to itself
[  515.642129] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).