[  522.392984] netdevsim netdevsim461 eni461np1: renamed from eth0
[  522.489972] netdevsim netdevsim696 eni696np1: renamed from eth1
[  522.728218] Could not find device with ifindex 2000 in netnsfd 11
[  522.728406] Could not find netns with fd: 2000
[  522.728509] Cannot link a netdevsim to itself
[  522.728645] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).