[  773.881573][T14754] netdevsim netdevsim257 eni257np1: renamed from eth0
[  773.899608][T14756] netdevsim netdevsim738 eni738np1: renamed from eth1
[  774.478851][T14742] Could not find device with ifindex 2000 in netnsfd 11
[  774.479472][T14742] Could not find netns with fd: 2000
[  774.479960][T14742] Cannot link a netdevsim to itself
[  774.480853][T14742] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).