[  483.544813] netdevsim netdevsim316 eni316np1: renamed from eth0
[  483.545274] netdevsim netdevsim640 eni640np1: renamed from eth1
[  483.626685] Could not find device with ifindex 2000 in netnsfd 11
[  483.626767] Could not find netns with fd: 2000
[  483.626809] Cannot link a netdevsim to itself
[  483.626857] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).