[  816.709983][T15837] netdevsim netdevsim336 eni336np1: renamed from eth0
[  816.715749][T15834] netdevsim netdevsim536 eni536np1: renamed from eth1
[  817.336875][T15823] Could not find device with ifindex 2000 in netnsfd 11
[  817.337567][T15823] Could not find netns with fd: 2000
[  817.338030][T15823] Cannot link a netdevsim to itself
[  817.339505][T15823] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).