[  812.778835][T14759] netdevsim netdevsim308 eni308np1: renamed from eth0
[  812.806372][T14761] netdevsim netdevsim521 eni521np1: renamed from eth1
[  813.427751][T14747] Could not find device with ifindex 2000 in netnsfd 11
[  813.428676][T14747] Could not find netns with fd: 2000
[  813.429081][T14747] Cannot link a netdevsim to itself
[  813.429572][T14747] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).