[  525.853151] netdevsim netdevsim501 eni501np1: renamed from eth0
[  525.950091] netdevsim netdevsim522 eni522np1: renamed from eth1
[  526.190937] Could not find device with ifindex 2000 in netnsfd 11
[  526.191126] Could not find netns with fd: 2000
[  526.191207] Cannot link a netdevsim to itself
[  526.191304] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).