[  520.489698] netdevsim netdevsim477 eni477np1: renamed from eth0
[  520.586703] netdevsim netdevsim742 eni742np1: renamed from eth1
[  520.841151] Could not find device with ifindex 2000 in netnsfd 11
[  520.841334] Could not find netns with fd: 2000
[  520.841418] Cannot link a netdevsim to itself
[  520.841521] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).