[  525.652571] netdevsim netdevsim491 eni491np1: renamed from eth0
[  525.749770] netdevsim netdevsim730 eni730np1: renamed from eth1
[  526.023861] Could not find device with ifindex 2000 in netnsfd 11
[  526.024070] Could not find netns with fd: 2000
[  526.024172] Cannot link a netdevsim to itself
[  526.024313] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).