[  486.308826] netdevsim netdevsim357 eni357np1: renamed from eth0
[  486.409852] netdevsim netdevsim688 eni688np1: renamed from eth1
[  486.753980] Could not find device with ifindex 2000 in netnsfd 11
[  486.754168] Could not find netns with fd: 2000
[  486.754267] Cannot link a netdevsim to itself
[  486.754415] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).