[  457.395861] netdevsim netdevsim490 eni490np1: renamed from eth0
[  457.396981] netdevsim netdevsim676 eni676np1: renamed from eth1
[  457.479813] Could not find device with ifindex 2000 in netnsfd 11
[  457.479899] Could not find netns with fd: 2000
[  457.479938] Cannot link a netdevsim to itself
[  457.479985] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).