[  484.019915] netdevsim netdevsim444 eni444np1: renamed from eth0
[  484.020850] netdevsim netdevsim642 eni642np1: renamed from eth0
[  484.111356] Could not find device with ifindex 2000 in netnsfd 11
[  484.111445] Could not find netns with fd: 2000
[  484.111490] Cannot link a netdevsim to itself
[  484.111539] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).