[  515.941624] netdevsim netdevsim616 eni616np1: renamed from eth1
[  516.039258] netdevsim netdevsim296 eni296np1: renamed from eth0
[  516.236150] Could not find device with ifindex 2000 in netnsfd 11
[  516.236307] Could not find netns with fd: 2000
[  516.236383] Cannot link a netdevsim to itself
[  516.236489] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).