[  525.407580] netdevsim netdevsim496 eni496np1: renamed from eth0
[  525.504718] netdevsim netdevsim534 eni534np1: renamed from eth1
[  525.749310] Could not find device with ifindex 2000 in netnsfd 11
[  525.749457] Could not find netns with fd: 2000
[  525.749535] Cannot link a netdevsim to itself
[  525.749626] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).