[  457.413773] netdevsim netdevsim462 eni462np1: renamed from eth0
[  457.414597] netdevsim netdevsim597 eni597np1: renamed from eth0
[  457.520536] Could not find device with ifindex 2000 in netnsfd 11
[  457.520684] Could not find netns with fd: 2000
[  457.520792] Cannot link a netdevsim to itself
[  457.520918] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).