[  515.860866] netdevsim netdevsim339 eni339np1: renamed from eth0
[  515.959463] netdevsim netdevsim729 eni729np1: renamed from eth1
[  516.169076] Could not find device with ifindex 2000 in netnsfd 11
[  516.169250] Could not find netns with fd: 2000
[  516.169332] Cannot link a netdevsim to itself
[  516.169424] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).