[  489.914924] netdevsim netdevsim263 eni263np1: renamed from eth0
[  490.011174] netdevsim netdevsim699 eni699np1: renamed from eth1
[  490.232809] Could not find device with ifindex 2000 in netnsfd 11
[  490.233099] Could not find netns with fd: 2000
[  490.233170] Cannot link a netdevsim to itself
[  490.233256] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).