[  515.545810] netdevsim netdevsim506 eni506np1: renamed from eth0
[  515.644088] netdevsim netdevsim518 eni518np1: renamed from eth1
[  515.838707] Could not find device with ifindex 2000 in netnsfd 11
[  515.838925] Could not find netns with fd: 2000
[  515.839017] Cannot link a netdevsim to itself
[  515.839158] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).