[  525.418385] netdevsim netdevsim604 eni604np1: renamed from eth1
[  525.514246] netdevsim netdevsim407 eni407np1: renamed from eth0
[  525.742901] Could not find device with ifindex 2000 in netnsfd 11
[  525.743074] Could not find netns with fd: 2000
[  525.743162] Cannot link a netdevsim to itself
[  525.743259] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).