[  763.681149][T14570] netdevsim netdevsim500 eni500np1: renamed from eth0
[  763.692776][T14572] netdevsim netdevsim699 eni699np1: renamed from eth1
[  764.283963][T14558] Could not find device with ifindex 2000 in netnsfd 11
[  764.285221][T14558] Could not find netns with fd: 2000
[  764.285799][T14558] Cannot link a netdevsim to itself
[  764.286267][T14558] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).