[  535.136824] netdevsim netdevsim409 eni409np1: renamed from eth0
[  535.238164] netdevsim netdevsim533 eni533np1: renamed from eth1
[  535.556122] Could not find device with ifindex 2000 in netnsfd 11
[  535.556258] Could not find netns with fd: 2000
[  535.556325] Cannot link a netdevsim to itself
[  535.556405] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).