[  473.279732] netdevsim netdevsim271 eni271np1: renamed from eth0
[  473.280003] netdevsim netdevsim678 eni678np1: renamed from eth1
[  473.347378] Could not find device with ifindex 2000 in netnsfd 11
[  473.347454] Could not find netns with fd: 2000
[  473.347499] Cannot link a netdevsim to itself
[  473.347550] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).