[  457.402694] netdevsim netdevsim269 eni269np1: renamed from eth0
[  457.404958] netdevsim netdevsim563 eni563np1: renamed from eth1
[  457.499756] Could not find device with ifindex 2000 in netnsfd 11
[  457.499909] Could not find netns with fd: 2000
[  457.500035] Cannot link a netdevsim to itself
[  457.500153] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).