[  492.741826] netdevsim netdevsim489 eni489np1: renamed from eth0
[  492.838604] netdevsim netdevsim648 eni648np1: renamed from eth1
[  493.079595] Could not find device with ifindex 2000 in netnsfd 11
[  493.079883] Could not find netns with fd: 2000
[  493.079952] Cannot link a netdevsim to itself
[  493.080035] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).