[  537.157007] netdevsim netdevsim486 eni486np1: renamed from eth0
[  537.258547] netdevsim netdevsim583 eni583np1: renamed from eth1
[  537.613081] Could not find device with ifindex 2000 in netnsfd 11
[  537.613231] Could not find netns with fd: 2000
[  537.613314] Cannot link a netdevsim to itself
[  537.613405] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).