[  494.576076] netdevsim netdevsim766 eni766np1: renamed from eth1
[  494.672623] netdevsim netdevsim340 eni340np1: renamed from eth0
[  494.922454] Could not find device with ifindex 2000 in netnsfd 11
[  494.922839] Could not find netns with fd: 2000
[  494.922918] Cannot link a netdevsim to itself
[  494.923041] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).