[  716.464886][T13060] netdevsim netdevsim340 eni340np1: renamed from eth0
[  716.484197][T13062] netdevsim netdevsim620 eni620np1: renamed from eth1
[  717.099517][T13048] Could not find device with ifindex 2000 in netnsfd 11
[  717.100425][T13048] Could not find netns with fd: 2000
[  717.100953][T13048] Cannot link a netdevsim to itself
[  717.101548][T13048] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).