[  532.357175] netdevsim netdevsim683 eni683np1: renamed from eth1
[  532.454997] netdevsim netdevsim266 eni266np1: renamed from eth0
[  532.684141] Could not find device with ifindex 2000 in netnsfd 11
[  532.684315] Could not find netns with fd: 2000
[  532.684403] Cannot link a netdevsim to itself
[  532.684503] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).