[  473.698753] netdevsim netdevsim470 eni470np1: renamed from eth0
[  473.699532] netdevsim netdevsim517 eni517np1: renamed from eth1
[  473.806325] Could not find device with ifindex 2000 in netnsfd 11
[  473.806433] Could not find netns with fd: 2000
[  473.806485] Cannot link a netdevsim to itself
[  473.806548] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).