[  478.851024] netdevsim netdevsim416 eni416np1: renamed from eth0
[  478.851840] netdevsim netdevsim736 eni736np1: renamed from eth0
[  478.946127] Could not find device with ifindex 2000 in netnsfd 11
[  478.946267] Could not find netns with fd: 2000
[  478.946346] Cannot link a netdevsim to itself
[  478.946430] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).