[  473.044061] netdevsim netdevsim268 eni268np1: renamed from eth0
[  473.045579] netdevsim netdevsim682 eni682np1: renamed from eth0
[  473.124210] Could not find device with ifindex 2000 in netnsfd 11
[  473.124287] Could not find netns with fd: 2000
[  473.124331] Cannot link a netdevsim to itself
[  473.124383] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).