[  515.741876] netdevsim netdevsim278 eni278np1: renamed from eth0
[  515.840079] netdevsim netdevsim530 eni530np1: renamed from eth1
[  516.085686] Could not find device with ifindex 2000 in netnsfd 11
[  516.085882] Could not find netns with fd: 2000
[  516.085979] Cannot link a netdevsim to itself
[  516.086088] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).