[  520.906204] netdevsim netdevsim393 eni393np1: renamed from eth0
[  521.002857] netdevsim netdevsim522 eni522np1: renamed from eth1
[  521.286098] Could not find device with ifindex 2000 in netnsfd 11
[  521.286308] Could not find netns with fd: 2000
[  521.286405] Cannot link a netdevsim to itself
[  521.286525] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).