[  513.293919] netdevsim netdevsim349 eni349np1: renamed from eth0
[  513.391435] netdevsim netdevsim685 eni685np1: renamed from eth1
[  513.639704] Could not find device with ifindex 2000 in netnsfd 11
[  513.639896] Could not find netns with fd: 2000
[  513.639976] Cannot link a netdevsim to itself
[  513.640095] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).