[  485.068067] netdevsim netdevsim653 eni653np1: renamed from eth1
[  485.164563] netdevsim netdevsim415 eni415np1: renamed from eth0
[  485.384507] Could not find device with ifindex 2000 in netnsfd 11
[  485.384893] Could not find netns with fd: 2000
[  485.385014] Cannot link a netdevsim to itself
[  485.385167] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).