[  487.820684] netdevsim netdevsim554 eni554np1: renamed from eth1
[  487.920594] netdevsim netdevsim386 eni386np1: renamed from eth0
[  488.418423] Could not find device with ifindex 2000 in netnsfd 11
[  488.418602] Could not find netns with fd: 2000
[  488.418685] Cannot link a netdevsim to itself
[  488.418805] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).