[  484.424498] netdevsim netdevsim707 eni707np1: renamed from eth1
[  484.524734] netdevsim netdevsim399 eni399np1: renamed from eth0
[  484.859911] Could not find device with ifindex 2000 in netnsfd 11
[  484.860103] Could not find netns with fd: 2000
[  484.860213] Cannot link a netdevsim to itself
[  484.860353] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).