[  710.259094][T13050] netdevsim netdevsim312 eni312np1: renamed from eth0
[  710.297617][T13051] netdevsim netdevsim561 eni561np1: renamed from eth1
[  711.105553][T13038] Could not find device with ifindex 2000 in netnsfd 11
[  711.106715][T13038] Could not find netns with fd: 2000
[  711.107244][T13038] Cannot link a netdevsim to itself
[  711.107817][T13038] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).