[  515.879128] netdevsim netdevsim377 eni377np1: renamed from eth0
[  515.975475] netdevsim netdevsim668 eni668np1: renamed from eth1
[  516.171346] Could not find device with ifindex 2000 in netnsfd 11
[  516.171560] Could not find netns with fd: 2000
[  516.171651] Cannot link a netdevsim to itself
[  516.171753] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).