[  522.443639] netdevsim netdevsim391 eni391np1: renamed from eth0
[  522.539989] netdevsim netdevsim650 eni650np1: renamed from eth1
[  522.786347] Could not find device with ifindex 2000 in netnsfd 11
[  522.786566] Could not find netns with fd: 2000
[  522.786665] Cannot link a netdevsim to itself
[  522.786777] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).