[  794.989668][T14598] netdevsim netdevsim643 eni643np1: renamed from eth1
[  795.002052][T14599] netdevsim netdevsim277 eni277np1: renamed from eth0
[  795.684843][T14585] Could not find device with ifindex 2000 in netnsfd 11
[  795.685402][T14585] Could not find netns with fd: 2000
[  795.685803][T14585] Cannot link a netdevsim to itself
[  795.686234][T14585] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).