[  493.876416] netdevsim netdevsim422 eni422np1: renamed from eth0
[  493.973249] netdevsim netdevsim608 eni608np1: renamed from eth1
[  494.214847] Could not find device with ifindex 2000 in netnsfd 11
[  494.215246] Could not find netns with fd: 2000
[  494.215349] Cannot link a netdevsim to itself
[  494.215481] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).