[  529.500024] netdevsim netdevsim455 eni455np1: renamed from eth0
[  529.597058] netdevsim netdevsim535 eni535np1: renamed from eth1
[  529.832855] Could not find device with ifindex 2000 in netnsfd 11
[  529.833045] Could not find netns with fd: 2000
[  529.833127] Cannot link a netdevsim to itself
[  529.833220] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).