[  456.217246] netdevsim netdevsim327 eni327np1: renamed from eth0
[  456.220763] netdevsim netdevsim577 eni577np1: renamed from eth1
[  456.314050] Could not find device with ifindex 2000 in netnsfd 11
[  456.314218] Could not find netns with fd: 2000
[  456.314329] Cannot link a netdevsim to itself
[  456.314460] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).