[  457.702163] netdevsim netdevsim489 eni489np1: renamed from eth0
[  457.702939] netdevsim netdevsim530 eni530np1: renamed from eth1
[  457.803650] Could not find device with ifindex 2000 in netnsfd 11
[  457.803767] Could not find netns with fd: 2000
[  457.803819] Cannot link a netdevsim to itself
[  457.803877] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).