[  773.686288][T14749] netdevsim netdevsim480 eni480np1: renamed from eth0
[  773.712098][T14751] netdevsim netdevsim537 eni537np1: renamed from eth1
[  774.391580][T14737] Could not find device with ifindex 2000 in netnsfd 11
[  774.393566][T14737] Could not find netns with fd: 2000
[  774.393962][T14737] Cannot link a netdevsim to itself
[  774.394402][T14737] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).