[  522.253014] netdevsim netdevsim481 eni481np1: renamed from eth0
[  522.350488] netdevsim netdevsim625 eni625np1: renamed from eth1
[  522.563748] Could not find device with ifindex 2000 in netnsfd 11
[  522.563940] Could not find netns with fd: 2000
[  522.564040] Cannot link a netdevsim to itself
[  522.564160] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).