[  486.539560] netdevsim netdevsim742 eni742np1: renamed from eth1
[  486.639363] netdevsim netdevsim314 eni314np1: renamed from eth0
[  487.011736] Could not find device with ifindex 2000 in netnsfd 11
[  487.011878] Could not find netns with fd: 2000
[  487.011956] Cannot link a netdevsim to itself
[  487.012050] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).