[  487.080249] netdevsim netdevsim489 eni489np1: renamed from eth0
[  487.181484] netdevsim netdevsim648 eni648np1: renamed from eth1
[  487.594859] Could not find device with ifindex 2000 in netnsfd 11
[  487.595053] Could not find netns with fd: 2000
[  487.595150] Cannot link a netdevsim to itself
[  487.595264] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).