[  522.411902] netdevsim netdevsim696 eni696np1: renamed from eth1
[  522.509800] netdevsim netdevsim502 eni502np1: renamed from eth0
[  522.717415] Could not find device with ifindex 2000 in netnsfd 11
[  522.717596] Could not find netns with fd: 2000
[  522.717699] Cannot link a netdevsim to itself
[  522.717827] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).