[  473.175953] netdevsim netdevsim260 eni260np1: renamed from eth0
[  473.176773] netdevsim netdevsim638 eni638np1: renamed from eth1
[  473.253194] Could not find device with ifindex 2000 in netnsfd 11
[  473.253281] Could not find netns with fd: 2000
[  473.253329] Cannot link a netdevsim to itself
[  473.253389] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).