[  494.226073] netdevsim netdevsim724 eni724np1: renamed from eth1
[  494.322201] netdevsim netdevsim405 eni405np1: renamed from eth0
[  494.545578] Could not find device with ifindex 2000 in netnsfd 11
[  494.545962] Could not find netns with fd: 2000
[  494.546057] Cannot link a netdevsim to itself
[  494.546178] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).