[  490.904720] netdevsim netdevsim271 eni271np1: renamed from eth0
[  491.001516] netdevsim netdevsim535 eni535np1: renamed from eth1
[  491.261614] Could not find device with ifindex 2000 in netnsfd 11
[  491.261843] Could not find netns with fd: 2000
[  491.261947] Cannot link a netdevsim to itself
[  491.262061] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).