[  939.664792][T12497] netdevsim netdevsim323 eni323np1: renamed from eth0
[  939.762350][T12499] netdevsim netdevsim538 eni538np1: renamed from eth1
[  941.305817][T12577] Could not find device with ifindex 2000 in netnsfd 11
[  941.306806][T12577] Could not find netns with fd: 2000
[  941.307678][T12577] Cannot link a netdevsim to itself
[  941.308471][T12577] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).