[  486.184094] netdevsim netdevsim500 eni500np1: renamed from eth0
[  486.285054] netdevsim netdevsim618 eni618np1: renamed from eth1
[  486.644046] Could not find device with ifindex 2000 in netnsfd 11
[  486.644230] Could not find netns with fd: 2000
[  486.644333] Cannot link a netdevsim to itself
[  486.644463] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).