[  515.551291] netdevsim netdevsim580 eni580np1: renamed from eth1
[  515.648492] netdevsim netdevsim336 eni336np1: renamed from eth0
[  515.835736] Could not find device with ifindex 2000 in netnsfd 11
[  515.835890] Could not find netns with fd: 2000
[  515.835969] Cannot link a netdevsim to itself
[  515.836056] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).