[  486.547549] netdevsim netdevsim345 eni345np1: renamed from eth0
[  486.648827] netdevsim netdevsim531 eni531np1: renamed from eth1
[  487.033313] Could not find device with ifindex 2000 in netnsfd 11
[  487.033467] Could not find netns with fd: 2000
[  487.033555] Cannot link a netdevsim to itself
[  487.033662] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).