[  494.878063] netdevsim netdevsim420 eni420np1: renamed from eth0
[  494.973275] netdevsim netdevsim758 eni758np1: renamed from eth1
[  495.223894] Could not find device with ifindex 2000 in netnsfd 11
[  495.224279] Could not find netns with fd: 2000
[  495.224383] Cannot link a netdevsim to itself
[  495.224502] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).