[  521.616415] netdevsim netdevsim343 eni343np1: renamed from eth0
[  521.713346] netdevsim netdevsim728 eni728np1: renamed from eth1
[  521.958988] Could not find device with ifindex 2000 in netnsfd 11
[  521.959172] Could not find netns with fd: 2000
[  521.959259] Cannot link a netdevsim to itself
[  521.959369] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).