[  488.252048] netdevsim netdevsim404 eni404np1: renamed from eth0
[  488.348992] netdevsim netdevsim519 eni519np1: renamed from eth1
[  488.567313] Could not find device with ifindex 2000 in netnsfd 11
[  488.567591] Could not find netns with fd: 2000
[  488.567717] Cannot link a netdevsim to itself
[  488.567840] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).