[  526.417317] netdevsim netdevsim568 eni568np1: renamed from eth1
[  526.514455] netdevsim netdevsim337 eni337np1: renamed from eth0
[  526.746198] Could not find device with ifindex 2000 in netnsfd 11
[  526.746397] Could not find netns with fd: 2000
[  526.746485] Cannot link a netdevsim to itself
[  526.746606] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).