[  455.376777] netdevsim netdevsim444 eni444np1: renamed from eth0
[  455.377361] netdevsim netdevsim600 eni600np1: renamed from eth1
[  455.469092] Could not find device with ifindex 2000 in netnsfd 11
[  455.469254] Could not find netns with fd: 2000
[  455.469356] Cannot link a netdevsim to itself
[  455.469473] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).