[  752.071004][T14444] netdevsim netdevsim509 eni509np1: renamed from eth0
[  752.089973][T14447] netdevsim netdevsim527 eni527np1: renamed from eth1
[  752.645538][T14432] Could not find device with ifindex 2000 in netnsfd 11
[  752.651399][T14432] Could not find netns with fd: 2000
[  752.651829][T14432] Cannot link a netdevsim to itself
[  752.652273][T14432] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).