[  511.763744] netdevsim netdevsim427 eni427np1: renamed from eth0
[  511.861950] netdevsim netdevsim574 eni574np1: renamed from eth1
[  512.066032] Could not find device with ifindex 2000 in netnsfd 11
[  512.066218] Could not find netns with fd: 2000
[  512.066290] Cannot link a netdevsim to itself
[  512.066374] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).