[  486.594850] netdevsim netdevsim481 eni481np1: renamed from eth0
[  486.595659] netdevsim netdevsim513 eni513np1: renamed from eth1
[  486.682149] Could not find device with ifindex 2000 in netnsfd 11
[  486.682246] Could not find netns with fd: 2000
[  486.682301] Cannot link a netdevsim to itself
[  486.682350] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).