[  476.942425] netdevsim netdevsim261 eni261np1: renamed from eth0
[  476.942714] netdevsim netdevsim632 eni632np1: renamed from eth1
[  477.041602] Could not find device with ifindex 2000 in netnsfd 11
[  477.041729] Could not find netns with fd: 2000
[  477.041783] Cannot link a netdevsim to itself
[  477.041847] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).