[  519.974941] netdevsim netdevsim689 eni689np1: renamed from eth1
[  520.072028] netdevsim netdevsim417 eni417np1: renamed from eth0
[  520.321201] Could not find device with ifindex 2000 in netnsfd 11
[  520.321404] Could not find netns with fd: 2000
[  520.321505] Cannot link a netdevsim to itself
[  520.321618] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).