[  478.934325] netdevsim netdevsim726 eni726np1: renamed from eth1
[  479.035997] netdevsim netdevsim473 eni473np1: renamed from eth0
[  479.374828] Could not find device with ifindex 2000 in netnsfd 11
[  479.375014] Could not find netns with fd: 2000
[  479.375107] Cannot link a netdevsim to itself
[  479.375222] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).