[  812.687340][T14601] netdevsim netdevsim503 eni503np1: renamed from eth0
[  812.710962][T14603] netdevsim netdevsim754 eni754np1: renamed from eth1
[  813.332349][T14589] Could not find device with ifindex 2000 in netnsfd 11
[  813.333198][T14589] Could not find netns with fd: 2000
[  813.333616][T14589] Cannot link a netdevsim to itself
[  813.334073][T14589] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).