[  807.363263][T14762] netdevsim netdevsim263 eni263np1: renamed from eth0
[  807.390446][T14765] netdevsim netdevsim581 eni581np1: renamed from eth1
[  808.022450][T14750] Could not find device with ifindex 2000 in netnsfd 11
[  808.023239][T14750] Could not find netns with fd: 2000
[  808.023622][T14750] Cannot link a netdevsim to itself
[  808.024102][T14750] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).